Reasoning: M and N should serve on A
Ans: (D)
Question: In case L is the only individual sewing on committee B, which among the following shouldserve on committee A?
Options:
(A) V and U
(B) V and T
(C) U and S
(D) M and N
(E) T and U
Rationale: 49920 /12 = 4160
3840 /10 = 416
416 /8 = 52
The answer: (A)
Question: What will come in place of the x in the following Number series? 49920, 4160, 416, x
Options:
(A) 52
(B) 3
(C) 4
(D) 5
(E) 6
Reasoning: A number ending with 7 can never be a perfect square.
Ans: (D)
Question: How many two-digit numbers satisfy this property.: The last digit (unit's digit) of the square of the two-digit number is 7 ?
Options:
(A) 3
(B) 1
(C) 4
(D) 0
(E) 2
Rationale: Using question number 11 and 12, we get the probability as
1 - (1/36 + 5/9) = 5/12
The answer: (A)
Question: Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is -.
Options:
(A) 5/12
(B) 4/13
(C) 5/17
(D) 3/12
(E) 8/9
Reasoning: Required sum = (11 +13 + 17 + 19 + 23+ 29 + 31 + 37) = 180
Note: 1 is not a prime number
Ans: (C)
Question: What is the sum of all the prime numbers greater than 10 but less than 40?
Options:
(A) 190
(B) 189
(C) 180
(D) 199
(E) 1981
Reasoning: 9 = 5 blue balls + 20/ 5
Ans: (B)
Question: There are 25 balls in a jar. You take out 5 blue balls without putting them back inside, and now the probability of pulling out a blue ball is 1/5. How many blue balls were there in the beginning?
Options:
(A) 12.
(B) 9.
(C) 8.
(D) 7.
(E) 6.