question: The edge of a cube is 4a cm. Find its surface?
Options:
(A) 24a8
(B) 24a4
(C) 96a2
(D) 24a2
(E) 24a7
answer: Stream of consciousness: 6a2 = 6 * 4a * 4a = 96a2 The answer is (C).

q: Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24.
Options:
(A) 9974
(B) 9125
(C) 9565
(D) 9997
(E) None of these
a: Stream of consciousness: Since the difference between the divisors and the respective remainders is not constant, back substitution is the convenient method. None of the given numbers is satisfying the condition. The answer is (E).

question: The average salary of workers in an industry is Rs.200 the average salary of technicians being Rs.400 and that of non-technicians being Rs.125. What is the total number of workers?
Options:
(A) 277
(B) 665
(C) 662
(D) 552
(E) 281
answer: Stream of consciousness: 8 * 84 = 672 7 = 665 The answer is (B).

q: The inverse ratio of 3: 2: 1 is?
Options:
(A) 2:3:7
(B) 2:3:9
(C) 2:3:2
(D) 2:3:6
(E) 2:3:1
a: Stream of consciousness: 1/3: 1/2: 1/1 = 2:3:6 The answer is (D).

question: Find the least number must be subtracted from 427398 so that remaining no.is divisible by 15?
Options:
(A) 3
(B) 4
(C) 6
(D) 9
(E) 8
answer: Stream of consciousness: On dividing 427398 by 15 we get the remainder 3, so 3 should be subtracted The answer is (A).

question: If a company allocates 25 percent of its budget to advertising, 15 percent to capital improvements, and 55 percent to salaries, what fraction of its budget remains for other allocations?
Options:
(A) 4/5
(B) 3/5
(C) 3/10
(D) 1/20
(E) 1/40
answer:
Stream of consciousness: 25 + 15 + 55 = 95% 100 - 95 = 5% to all others The answer is (D).