Rationale: Simple interest = (18000 * 4 * 15)/100 = Rs. 10800
Amount = P + I = 18000 + 10800 = Rs. 28800
The answer: (D)
Question: What amount does Kiran get if he invests Rs. 18000 at 15% p.a. simple interest for four years?
Options:
(A) 29893
(B) 27773
(C) 29989
(D) 28800
(E) 29883
Reasoning: Multiple of 6 and 7 with difference 1 are 36 and 35
So the number of students in the class is 37
Ans: (C)
Question: In a class if 1 is absent the rest of them can be divided into 6 equal groups and if two are absent can be divided into 7 equal groups. Find the minimum number of students in the class
Options:
(A) 35
(B) 36
(C) 37
(D) 38
(E) 39
Rationale: 10 * 5 + 36 26 = 60/10 = 6
The answer: (E)
Question: The average of 10 numbers is calculated as 5. It is discovered later on that while calculating the average, one number namely 36 was wrongly read as 26. The correct average is?
Options:
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
Reasoning: Any number multiplied by 2 has to be an even number henc
Ans: (E)
Question: If x and y are unique prime integers, which of the following must be odd?
Options:
(A) xy^2
(B) 2x+2y
(C) 2x2y
(D) 2x/2y
(E) xy
Rationale: 1/18 + 1/24 = 7/72
72/7 = 72/7 *2 = 20 4/7 days
The answer: (C)
Question: A can do a job in 18 days and B can do it in 24 days. A and B working together will finish twice the amount of work in days?
Options:
(A) 22 1/6
(B) 22 1/2
(C) 20 4/7
(D) 22 1/9
(E) 22 1/1
Rationale: S = 250/12 * 18/5 = 75kmph
The answer: (D)
Question: A 250 meter long train crosses a man standing on the platform in 12 sec. What is the speed of the train?
Options:
(A) 228
(B) 108
(C) 1266
(D) 75
(E) 211