q: A train 200 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?
Options:
(A) 32
(B) 28
(C) 40
(D) 27
(E) 21
a: S = (200 + 300)/45 = 500/45 * 18/5 = 40 The answer is (C).
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q: Find the largest 6 digit number which is exactly divisible by 88?
Options:
(A) 998765
(B) 998907
(C) 999944
(D) 999954
(E) 999990
a: Largest 6 digit number is 999999
After doing 999999 88 we get remainder 55
Hence largest 6 digit number exactly divisible by 88 = 999999 - 55 = 999944 The answer is (C).
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q: The average of 10 numbers is calculated as 15. 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) 22
(B) 88
(C) 16
(D) 83
(E) 82
a: 10 * 15 + 36 26 = 160/10 = 16 The answer is (C).
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q: In how many different number of ways 6 men and 2 women can sit on a shopa which can accommodate persons?
Options:
(A) 1680
(B) 1800
(C) 2000
(D) 2100
(E) 2300
a:
8p4 = 8 7 6 x 5 = 1680 The answer is (A).
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