Question: A man can row a boat at 10 kmph in still water and the speed of the stream is 8 kmph. What is then time taken to row a distance of 90 km down the stream ?
Options:
(A) 8hrs
(B) 5 hrs
(C) 15 hrs
(D) 15 hrs
(E) 20 hrs
Answer: Speed in down stream = 10 +8 = 18
Time taken to cover 90 km down stream = 90/18 = 5 hrs.
The answer is (B).

Question: What is the least value of integer N such that N! is divisible by 888 ?
Options:
(A) 13
(B) 88
(C) 31
(D) 37
(E) D) 888
Answer: 888 = 8*111 = 3*8*37
Hence 888 is a multiple of 37 and we need at least one 37 in N!
Therefore least value of N! is 37!, which will contain all of 3, 8, and 37.
The answer is (D).

Question: A shopkeeper sold sarees at 266 each after giving 5% discount on labelled price. Had he not given the discount, he would have earned a profit of 12% on the cost price. What was the cost price of each saree?
Options:
(A) 280
(B) 260
(C) 38 mph
(D) Data inadequate
(E) None of these
Answer: Marked price = 266 10095 280
Cost Price = 280 100112 = 250
The answer is (E).

Question: what is the next no. 4 12 84
Options:
(A) 632
(B) 732
(C) 832
(D) 850
(E) 902
Answer:
3^0 + 3 = 4
3^2 + 3 = 12
3^4 + 3 = 84
3^6 + 3 = 732
The answer is (B).