q: The edges of cuboid are 4 cm; 5 cm and 6 cm. Find its surface area?
Options:
(A) 228
(B) 148
(C) 992
(D) 772
(E) 222
a: Stream of consciousness: 2(4*5 + 5*6 + 4*6) = 148 The answer is (B).

question: Find the invalid no.from the following series 13, 18, 25, 30, 37, 40
Options:
(A) 30
(B) 35
(C) 40
(D) 47
(E) 50
answer: Stream of consciousness: The differences between two successive terms from the beginning are 7, 5, 7, 5, 7, 5. So, 40 is wrong. The answer is (C).

q: Find the largest 4 digit number which isexactly divisible by 88?
Options:
(A) 3454
(B) 4586
(C) 9944
(D) 10564
(E) 18664
a: Stream of consciousness: Largest 4 digit number is 9999
After doing 9999 88 we get remainder 55
Hence largest 4 digit number exactly divisible by 88 = 9999 - 55 = 9944 The answer is (C).

question: 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
answer: Stream of consciousness: 10 * 15 + 36 26 = 160/10 = 16 The answer is (C).

q: A no.when divided by 224 gives a remainder 43, what remainder will beobtained by dividingthe same no.17?
Options:
(A) 2
(B) 7
(C) 9
(D) 11
(E) 12
a: Stream of consciousness: 224 + 43 = 267/17 = 12 (Remainder) The answer is (E).

q: The average of first four prime numbers greater than 10 is?
Options:
(A) 10
(B) 20
(C) 15
(D) 40
(E) 50
a:
Stream of consciousness: 11 + 13 + 17 + 19 = 60/4 = 15 The answer is (C).