divelab/Sys2Bench huggingface dataset:
Question: In a rectangular coordinate system, what is the area of a rhombus whose vertices have the coordinates (0, 3.5), (12, 0), (0, -3.5), (-12, 0)?
Options:
A)84
B)88
C)112
D)116
E)120
Rationale: Area of rhombus= 1/2* D1 *D2
Length of 1st diagonal = 12+12= 24
Length of 2nd diagonal= 3.5+3.5= 7
Area= 1/2*24*7= 84
A is the answer
Answer: A
Question: In an election, candidate Smith won 52% of the total vote in Counties A and D. He won 61% of the vote in County A. If the ratio of people who voted in County A to County D is 3:1, what percent of the vote did candidate Smith win in County D ?
Options:
A)A.25%
B)B.27%
C)C.34%
D)D.43%
E)E.49%
Rationale: (61%)*3x + (y%)*x = (52%)*4x
y = 25% of County D
hence answer is A.
Answer: A
Question: Two pipes can fill a tank in 24 min and 32 min respectively. If both the pipes are opened simultaneously, after how much time B should be closed so that the tank is full in 18 min ?
Options:
A)4 min
B)6 min
C)9 min
D)8 min
E)12 min
Rationale: Pipe A will run for 18 minutes
Sp pipe A will do = 18/24 = 3/4 portion of the work
left work is 1/ 4
Just assume that what will be 1/4 if multiplied with 1/32 (B's rate )
Only 8 will make it 1/4
So after 8 minutes B should be stopped
Answer : D
Answer: D
Question: A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 38 years now, the son's age five years back was:
Options:
A)14 years
B)19 years
C)24 years
D)33 years
E)38 years
Rationale: Let the son's present age be x years. Then, (38 - x) = x
2x = 38.
x = 19.
Son's age 5 years back (19 - 5) = 14 years.
Answer: Option A
Answer: A
Question: How many seconds will a 700 m long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?
Options:
A)23 sec
B)30 sec
C)27 sec
D)36 sec
E)42 sec
Rationale: Speed of train relative to man = 63 - 3
= 60 km/hr.
= 60 * 5/18
= 50/3 m/sec.
Time taken to pass the man = 700 * 3/50
= 42 sec.
Answer:E
Answer: E
Question: A local restaurant recently renovated its dining space, purchasing new tables and chairs to use in addition to the original tables and chairs. The new tables each seat six customers, while the original tables each seat four customers. Altogether, the restaurant now has 40 tables and is capable of seating 212 customers. How many more new tables than original tables does the restaurant have?
Options:
A)8
B)12
C)20
D)24
E)28
Rationale: If all the tables seated 4, the number of customers could be 4*40 = 160.
212-160 = 52, so 52/2 = 26 tables must be tables seating 6 people.
The number of tables seating 4 people is 40-26 = 14.
The number of new tables is 26-14 = 12 more than the number of old tables.
The answer is B.
Answer: B
Question: A 1200 m long train crosses a tree in 120 sec, how much time will I take to pass a platform 700 m long?
Options:
A)176 Sec
B)190 Sec
C)178 Sec
D)267 Sec
E)276 Sec
Rationale: L = S*T
S= 1200/120
S= 10 m/Sec.
Total length (D)= 1900 m
T = D/S
T = 1900/10
T = 190 Sec
Answer:B
Answer: B
Question: One filter decreases the concentration of harmful substances in water by half. If water that contains less than 0.1 percent of harmful substances is considered clean, how many filters are required to clean 200 liters of water containing 0.5 liters of harmful substances ?
Options:
A)2
B)3
C)5
D)6
E)8
Rationale: Initially, the concentration of harmful substances in the water is 0.5/200∗100%=0.25%. One filter will reduce this concentration to 0.125%. Two filters will reduce the concentration to 0.0625% which is less than 0.1%
Answer: A
Answer: A
Question: The function f is defined for all positive integers m by the following rule. f(m) is the number of positive integers each of which is less than m and has no positive factor in common with m other than 1. If p is any prime, number then f(p)=
Options:
A)p-1
B)p-2
C)(p+1)/2
D)(p-1)/2
E)2
Rationale: If not the wording the question wouldn't be as tough as it is now. The GMAT often hides some simple concept in complicated way of delivering it.
This question for instance basically asks: how many positive integers are less than given prime number p which have no common factor with p except 1.
Well as p is a prime, all positive numbers less than p have no common factors with p (except common factor 1). So there would be p-1 such numbers (as we are looking number of integers less than p).
For example: if p=8 how many numbers are less than 8 having no common factors with 8: 1, 2, 3, 4, 5, 6, 7 --> 8-1=7.
Answer: A.
Answer: A
Question: If X is 30% greater than Y, Z is 25% smaller than how much percent is X greater than Z?
Options:
A)25%
B)73 1/3%
C)73%
D)74%
E)None of these
Rationale: Explanation:
X = 130
Y = 100
Z = 75
X-Z/Z * 100 = 55/75 * 100 = 5500/75 % = 73 1/3% greater than Z
Answer: Option B
Answer: B
Question: What is the smallest integer w greater than 1 that leaves a remainder of 1 when divided by any of the integers 6, 8, and 10?
Options:
A)21
B)41
C)w=121
D)241
E)481
Rationale: Or u can just use the answer choices here. Since the answers are already arranged in ascending order, the first number which gives remainder w as 1 for all three is the correct answer. In the given question, the first number which gives a remainder of 1 for 6,8 and 10 is 121.C
Answer: C
Question: Ravi can do a piece of work in 30 days while Prakash can do it in 40 days. In how many days will they finish it together?
Options:
A)17 1/7
B)17 1/5
C)17 1/8
D)17 1/1
E)17 1/2
Rationale: 1/30 + 1/40 = 7/120
120/7 = 17 1/7 days
Answer: A
Answer: A
Question: If 0 < x < 7 and 0 < y < 9, then the lowest possible value for xy is
Options:
A)between 60 and 70
B)between 0 and 60
C)0
D)between 0 and -70
E)less than -70
Rationale: If 0 < x < 7 and 0 < y < 9, then the lowest possible value for xy is
A. between 60 and 70
B. between 0 and 60
C. 0
D. between 0 and -70
E. less than -70
Say y = 8 (y<9)
x = 6
So xy =48 which is less than 60.
Answer is B
Answer: B
Question: A taxi company charges $1.15 for the first quarter of a mile and fifteen cents for each additional quarter of a mile. What is the maximum distance someone could travel with $4.90?
Options:
A)4 miles
B)4 1/4 miles
C)4 3/4 miles
D)5 1/2 miles
E)6 1/2 miles
Rationale: If we start out with $4.90 and have to spend $1.15 for the first quarter-mile, we will have $3.75 left to spend on quarter-mile intervals.
Since $3.75/$0.15 = 25, we can buy 25 more quarter-miles, and will travel 26 quarter miles in all:
26 × 1/4 = 6 1/2 miles.
The correct answer is choice (E).
Answer: E
Question: A certain essay consists of 15 paragraphs. Each paragraph contains at least 130 words but not more than 140 words. Which of the following could be the total number of words in the essay?
Options:
A)1440
B)1540
C)1640
D)1740
E)2050
Rationale: lets consider minimum no of words ... 15 * 130 = 1950
Lets consider maximum no of words .... 15*140= 2100
answer should be one of these two values or should lie between these two values ...
only 1 option E - 2050
Answer: E
Question: A school has received 60% of the amount it needs for a new building by receiving a donation of $400 each from people already solicited. People already solicited represent 40% of the people from whom the school will solicit donations. How much average contribution is requited from the remaining targeted people to complete the fund raising exercise?
Options:
A)$200
B)$177.78
C)$100
D)$277.78
E)$377.78
Rationale: Let us suppose there are 100 people. 40% of them donated $16000 ( 400 * 40 )
$16000 is 60% of total amount.
So total amount = 16000 * 100/60
Remaining amount is 40% of total amount.
40% of total amount = 16000 * (100/60) * (40/100) = 32000/3
This amount has to be divided by 60 ( remaining people are 60 )
So per head amount is 32000/3 / 60 = 32000/180 = 1600/9 = $177.78;
ANSWER:B
Answer: B
Question: At what time between 4 and 5 o'clock the hands are in opposite direction?
Options:
A)10 2/11 minutes past 4 o'clock
B)3 2/11 minutes past 4 o'clock
C)3 5/11 minutes past 4 o'clock
D)10 10/11 minutes past 4 o'clock
E)12 10/11 minutes past 4 o'clock
Rationale: hands are opposite,angle=180 deg
so,
angle=11/2(min)-30(h)
=> 180=11/2(min)-30(4)
=> 180+120=11/2(min)
=> (300*2)/11=min
=> min=54 6/11min past 4
ANSWER:E
Answer: E
Question: A certain game pays players in tokens, each of which is worth either m points or n points, where m and n are different positive integers whose greatest common factor is 1. In terms of m and n, what is the greatest possible sum, in points, that can be paid out with only one unique combination of these tokens? (For example, if m = 2 and n = 3, then a sum of 5 points can be created using only one combination, m + n, which is a unique combination. By contrast, a sum of 11 points can be created by 4m + n or by m + 3n. This solution does not represent a unique combination; two combinations are possible.)
Options:
A)2mn
B)2mn – m – n
C)2mn – m – n – 1
D)mn + m + n – 1
E)mn – m – n
Rationale: Multiple combinations are created when you can “exchange” a set of m tokens worth n points each for a set of n tokens worth m points each. In the example given in the problem, the first solution uses 4 m’s (worth 8 points total) and one n (worth 3 points) to reach 11 points. The second solution is created when 3 m’s (worth 2 points each, for a total of 6 points) are exchanged for 2 n’s (worth 3 points each, for a total of 6 points), leading to the new solution m + 3n.
The question asks for a sum with a unique solution, or a solution for which such an “exchange” is not possible. What must be true of this kind of solution?
The payout may include no more than (n – 1) m-point tokens. (If there were n of them, they could be exchanged to make a different combination.)
The payout may include no more than (m – 1) n-point tokens. (If there were m of them, they could be exchanged to make a different combination.)
The question asks for the greatest possible such sum, so use the maximum possible number of m and n tokens, as determined above:
(n – 1)(m) + (m – 1)(n)
= mn – m + mn – n
= 2mn – m – n.
Alternatively, try plugging in numbers. For instance, if m = 2 and n = 3, then you’re looking for the greatest possible sum that can be paid with a unique combination of 2- and 3-point tokens. That sum must be one of the answer choices, so check the sums in the answer choices and stop at the highest one with a unique payout combination.
With m = 2 and n = 3, the answer choices are (A) 12 points, (B) 7 points, (C) 6 points, (D) 10 points, (E) 1 point. Try them in decreasing order (because the problem asks for the greatest sum):
(A) A sum of 12 points can be paid out in three ways: six 2-point tokens; three 2-point tokens and two 3-point tokens; and four 3-point tokens. This answer is not correct.
(D) A sum of 10 points can be paid out in two ways: five 2-point tokens, or two 2-point tokens and two 3-point tokens. This answer is not correct.
(B) A sum of 7 points can be paid out only as two 2-point tokens and one 3-point token. This answer is the largest one left with a unique combination, so it is the correct answer.
The correct answer is (B)
Answer: B
Question: In how many different number of ways 5 men and 4 women can sit on a shopa which can accommodate persons?
Options:
A)2051
B)3024
C)2058
D)3020
E)4200
Rationale: 9p4 =9 x 8 x 7 x 6 = 3024
B)
Answer: B
Question: Among the members of the Malmo family, there are three times as many members who do not wear glasses as members who do. Half of the Malmo family members have blue eyes, and 4/5 of the family members who have blue eyes do not wear glasses. What percent of the Malmo family members wear glasses and do not have blue eyes?
Options:
A)10
B)15
C)20
D)25
E)35
Rationale: Number in black are given and in red are calculated.
Now, since x+3x=100, then x=25 and therefore =25−10=15
Answer: B.
Answer: B
Question: A boy wants to make cuboids of dimension 5m, 6m and 7m from small cubes of .03 m3. Later he realized he can make same cuboids by making it hollow. Then it takes some cubes less. What is the number of the cubes to be removed?
Options:
A)1000
B)2000
C)3000
D)4000
E)5000
Rationale: volume of the small cube = 0.03 m^3
so side of this cube = cubic root of 0.03 m^3 = .312 m
so after removing the outermost layer the dimensions for the inner cuboid will be (5-2*0.312), (6-2*0.312), (7-2*0.312)
so total volume will be (4.376)*(5.376)*(6.376) = 150 m^3
so no of cubes will be 150/0.03 = 5000
so we can remove 5000 inner cubes
ANSWER:E
Answer: E
Question: A fish tank contains orange fish and silver fish. After k more orange fish and 2k more silver fish are added, the probability of choosing an orange fish at random is 1313 . What was the probability of choosing a silver fish before any more fish were added?
Options:
A)1/4
B)1/3
C)1/2
D)2/3
E)3/4
Rationale: Equation (1): o+k=1xo+k=1x
Equation (2): s+2k=2xs+2k=2x
Multiplying the first Equation by 2: 2o+2k=2x2o+2k=2x. Let´s call this last equation, Equation (3): 2o+2k=2x2o+2k=2x
We can subtract Eq (3) −− Eq (2): 2o−s=02o−s=0, and then s=2os=2o.
Then, s/s+o=2o/3o=2/3
The correct answer is letter (D).
Answer: D
Question: A can do 1/4th part of the work in 10 days, B can do 40% of the work in 40 days and C can do 1/3rd of the work in 13 days. Who will complete the work first?
Options:
A)A
B)B
C)C
D)A and C both
E)None of these
Rationale: Explanation:
The whole work is done by A in 4 × 10 = 40 days
B can do the whole work in 40/40 × 100 days = 100 days
C can do the whole work in 3 × 13 = 39 days.
Therefore, the 1st person to complete the work is C.
Answer: Option C
Answer: C
Question: Find the length of the wire required to go 15 times round a square field containing 69696 m^2.
Options:
A)1250
B)2489
C)6398
D)15840
E)2487
Rationale: Explanation:
a2 = 69696 => a = 264
4a = 1056
1056 * 15 = 15840
Answer: D
Answer: D
Question: Roses can be purchased individually for $5.30, one dozen for $36, or two dozen for $50. What is the greatest number of roses that can be purchased for $680?
Options:
A) 156
B) 162
C) 317
D) 324
E) 325
Rationale: Buy as many $50 deals as possible. We can by 650/50=13 two dozen roses, thus total of 13*24 = 312 roses.
We are left with 680 - 650 = $30. We can buy 30/5.3 = ~5 roses for that amount.
Total = 312 + 5 = 317.
Answer: C.
Answer: C
Question: If x dollars is invested at 10 percent for one year and y dollars is invested at 8 percent for one year, the annual income from the 10 percent investment will exceed the annual income from the 8 percent investment by $65. If $2,000 is the total amount invested, how much is invested at 8 percent?
Options:
A)$550
B)$650
C)$750
D)$850
E)$950
Rationale: 0.1x = 0.08(2000-x)+65
0.18x = 225
x = 1250
Then the amount invested at 8% is $2000 - $1250 = $750
The answer is C.
Answer: C
Question: 62 small identical cubes are used to form a large cube. How many more cubes are needed to add one top layer of small cube all over the surface of the large cube ?
Options:
A)64
B)128
C)152
D)154
E)256
Rationale: 62 small cube will make a large cube with 4 cubes in each line i.e.
Adding one layer will require one cube at each end and hence new cube will have 6 cubes in each line.
Total number of small cubes in new cube = 6^3 = 216
Extra cube required = 216 - 62 = 154
Hence, D is the answer.
Answer: D
Question: If a book is sold at 9% profit instead of 9% loss, it would have brought Rs 9 more. Find out the cost price of the book
Options:
A)75
B)72
C)50
D)70
E)80
Rationale: Let C.P. of the book be Rs. ’X’
Given, 1.09 X - 0.91X = 9
=> 0.18 X = 9 = 9/0.18 = Rs 50
ANSWER:C
Answer: C
Question: Divide $600 among C,D in the ratio 9:6. How many $ that D get?
Options:
A)$44
B)$40
C)$36
D)$32
E)$28
Rationale: Sum of ratio terms = 9+6 = 15
D = 600*6/15 = $40
Answer is B
Answer: B
Question: What are the number of ways to select 3 men and 2 women such that one man and one woman are always selected?
Options:
A)20
B)30
C)40
D)45
E)50
Rationale: The number of ways to select three men and two women such that one man and one woman are always selected = Number of ways selecting two men and one woman from men and five women
= ⁴C₂ * ⁵C₁ = (4 * 3)/(2 * 1) * 5
= 30 ways.
B
Answer: B
Question: Set A consists of all the prime numbers between 10 and 25. What is the range of set A?
Options:
A)12
B)13
C)16.6
D)17
E)23
Rationale: The range of a set of data is the difference between the highest and lowest values in the set
In this set,
Highest number = 23
Lowest number = 11
Range = Highest - Lowest = 23 - 11 = 12
Option A
Answer: A
Question: The dimensions of a room are 25 feet * 15 feet * 12 feet. What is the cost of white washing the four walls of the room at Rs. 6 per square feet if there is one door of dimensions 6 feet * 3 feet and three windows of dimensions 4 feet * 3 feet each?
Options:
A)s.4538
B)s.4518
C)s.4518
D)s.4530
E)s.5436
Rationale: Area of the four walls = 2h(l + b)
Since there are doors and windows, area of the walls = 2 * 12 (15 + 25) - (6 * 3) - 3(4 * 3) = 906 sq.ft.
Total cost = 906 * 6 = Rs.5436
Answer: E
Answer: E
Question: In a race of 300 m A beats B by 15 m and C by 9 m. In a race of 450 m C will beat B by
Options:
A)381 m
B)429 m
C)441 m
D)439 m
E)449 m
Rationale: A:B=300:285 (Bcoz A beats b by 15 m)
B:C=300:291 (Bcoz A beats C by 9 m)
C:B=291:285 (It means C beats by B 6 m in race of 291m)
then C beats by B in race of 450 m = (6/291)*450=9m
so, 450-9=441m
ANSWER:C
Answer: C
Question: The average of 10numbers is 60. Out of 10numbers the average of first 6no. is 68, and last 6numbers is 75 then find 7th number?
Options:
A)A)78
B)B)65
C)C)258
D)D)62
E)E)48
Rationale: 7th number = sum of 1st 6no.s + sum of last 6no.s - sum of 11no.s
answer = 6*68+6*75-10*60 = 258
Answer is C
Answer: C
Question: A painter intends to mixed two jars of paint to create a new color. He chooses one paint jar randomly from a display containing 2 red and 2 blue samples, and a second jar is chosen at random from a different display containing 4 red and 2 blue samples. If he plans on mixing the two chosen jars together, what is the probability that when mixed together, the result will be purple paint? (The color purple is created with 1 part red and 1 part blue.)
Options:
A)1/5
B)1/2
C)2/3
D)4/5
E)6/5
Rationale: Painter has two buckets he has to randomly pick from 2 different lists ... Let these Lists be A and B ... He has to choose the first bucket from List A , and the second bucket from List B
FOR THE FIRST BUCKET ...
Red color - 2
Blue color - 2
FOR THE SECOND BUCKET
Red color - 3
Blue color -2
In order to get Purple he has to mix red with blue .. Both the LISTS contain either blue or red , therefore we have two scenarios :
Scenario I - He picks Red color from List A and Blue color from List B
Scenario II - He picks Blue color from List A and Red color from List B
Scenario I - Odds for red color from List A are 1/2 .. and for Blue color from List B are 2 /5 .. Multiplying them (because we have to find the odds that both colors are selected from their respective lists together (this is a AND not an OR problem) we get 1/5
Scenario II - Odds for blue color from List A are 1/2 , and for Red color from List B are 3/5 ... Multiplying them we get 3/10 ...
Both the scenarios are equally possible therefore we must ADD the two (not multiply ) because both of them do not have to hold true together (have to independently) for our desired result to be achieved ...
We get 1/5 + 3/10 = 4/5(D)
Answer: D
Question: A ship 450 m long is running at a speed of 24 km/hr. In what time will it pass a bridge 900 m long?
Options:
A)202.5sec
B)205.5 sec
C)200 sec
D)1350 sec
E)900sec
Rationale: total length= 450+900=1350
speed=24 km/h=(24*5)/18= 20/3 m/s
time=(1350*3)/20=202.5 sec.
ANSWER:A
Answer: A
Question: At 3:00 pm, a car has driven 30 miles east. It will continue to drive east at 0.5 minutes per mile and then turn around and drive at 0.5 minutes per mile back to its original starting point. How far can it drive before turning around in order to arrive back to its original starting point by 3:40 pm?
Options:
A)a) 10
B)b) 11
C)c) 12
D)d) 13
E)e) 25
Rationale: 0.8 minutes --> 1 mile
1 minute --> 1/0.5 = 10/5 =2 miles/minute
Distance covered in 40 minutes = 2* 40 =80 miles
Distance covered in the current direction = Distance covered from the opposite direction (since car returns back to starting point)
Let x be the miles driven before turning
30 + x = 80 - x
2x = 50
x = 25
Answer: E
Answer: E
Question: which one is odd?
4377
3954
9860
8454
9831
Options:
A)4377
B)3954
C)9860
D)8454
E)None
Rationale: Correct Answer : C
sum of digit of all other number is 21, but sum of digit of 9860 is 23
Answer: C
Question: Evaluate 2.5 / .0005
Options:
A)5000
B)500
C)50000
D)50
E)0.5
Rationale: Explanation:
2.5 * 10000 / 5 = 25000/5 = 5000
Option A
Answer: A
Question: Rodrick mixes a martini that has a volume of 'n' ounces having 40% Vermouth and 60% Gin by volume. He wants to change it so that the martini is 25% Vermouth by volume. How many ounces of Gin must he add?
Options:
A)n/6
B)n/3
C)3n/5
D)5n/6
E)8n/5
Rationale: Note that after we add pure Gin, the volume of Vermouth will remain the same. Based on this set the equation:
0.4n=0.25(n+g) --> g=3n/5
Answer: C.
Answer: C
Question: A certain city with a population of 192,000 is to be divided into 11 voting districts , and no district is to have a population that is more than 10 percent greater than the population of any other district What is the minimum possible population that the least populated district could have ?
Options:
A)a) 10,700
B)b) 16,000
C)c) 10,900
D)d) 11,000
E)e) 11,100
Rationale: Let x = number of people in smallest district
x*1.1 = number of people in largest district
x will be minimised when the number of people in largest district is maximised
10*x*1.1 = 11x = total number of people in other districts
So we have 11x + x = 192k
x = 16,000
Answer : B
Answer: B
Question: A certain bus driver is paid a regular rate of $16 per hour for any number of hours that does not exceed 40 hours per week. For any overtime hours worked in excess of 40 hours per week, the bus driver is paid a rate that is 75% higher than his regular rate. If last week the bus driver earned $1116 in total compensation, how many total hours did he work that week?
Options:
A)36
B)57
C)44
D)48
E)52
Rationale: For 40 hrs = 40*16=640
Excess = 1116-640=476
For extra hours =.75(16)=12+16=28
Number of extra hrs =476/28=17
Total hrs =40+17=57
Answer B 57
Answer: B
Question: A dog chases a cat 3 hours after the cat runs. dog takes 6 hours to reach the cat. If the average speed of the dog is 72 kmph, what s the average speed of the cat?
Options:
A)48kmph
B)47kmph
C)46kmph
D)38kmph
E)37kmph
Rationale: cat take 9 hours and dog take 6 hours...then Distance chased by them is 72*6.so speed of cat is (72*6)/9=48kmph.
ANSWER IS A
Answer: A
Question: In one hour, a boat goes 11 km along the stream and 5 km against the stream. The speed of the boat in still water in ( km/hr) is
Options:
A)3
B)5
C)8
D)9
E)7
Rationale: Solution
Speed in still water	= 1/2(11+5) km/hr
= 8 km/hr.
Answer C
Answer: C
Question: The H.C.F. of two numbers is 25 and the other two factors of their L.C.M. are 14 and 16. The larger of the two numbers is
Options:
A)276
B)299
C)312
D)400
E)None
Rationale: Solution
Clearly, the numbers are (25 x 14) and (25 x 16).
Larger number = (25 x 16)	= 400.
Answer D
Answer: D
Question: If (2 to the x) - (2 to the (x-2)) = 3 (2 to the 12), what is the value of x?
Options:
A)9
B)11
C)13
D)15
E)14
Rationale: I am guessing the question is:
(2 to the power x) - (2 to the power (x-2)) = 3 (2 to the power 12)
2^x - 2^(x-2) = 3. 2^12
Hence x = 14.
Answer is E
Answer: E
Question: Evaluate:57- 12*3*2 =?
Options:
A)42
B)49
C)62
D)72
E)82
Rationale: According to order of operations, 12?3?2 (division and multiplication) is done first from left to right
12**2 = 4* 2 = 8
Hence
57 - 12*3*2 = 57- 8 = 49
correct answer B
Answer: B