question: A 21 cm long wire is to be cut into two pieces so that one piece will be 2/5th of the other, how many centimeters will the shorter piece be?
Options:
(A) 12
(B) 6
(C) 88
(D) 77
(E) 14
answer: Stream of consciousness: 1: 2/5 = 5: 2
2/7 * 21 = 6 The answer is (B).

q: Find the expenditure on digging a well 14m deep and of 3m diameter at Rs.15 per cubic meter?
Options:
(A) Rs.1185
(B) Rs.1285
(C) Rs.1385
(D) Rs.1485
(E) Rs.1495
a: Stream of consciousness: 22/7 * 14 * 3/2 * 3/2 = 99 m2
99 * 15 = 1485 The answer is (D).

question: John makes $50 a week from his job. He earns a raise and now makes $80 a week. What is the % increase?
Options:
(A) 16%
(B) 16.66%
(C) 17.9%
(D) 18.12%
(E) 60%
answer: Stream of consciousness: Increase = (30/50)*100 = (3/5)*100 = 60%. The answer is (E).

q: The speed of a train is 90 kmph. What is the distance covered by it in 30 minutes?
Options:
(A) 15
(B) 66
(C) 77
(D) 52
(E) 45
a: Stream of consciousness: 90 * 30/60 = 45 kmph The answer is (E).

question: If 15% of 40 is greater than 25% of a number by 2,then find the number is?
Options:
(A) 20
(B) 15
(C) 16
(D) 25
(E) 30
answer: Stream of consciousness: 15/100 * 40 - 25/100 * x = 2 or x/4 = 4 so x = 16 The answer is (C).

question: A man walks at a speed of 3 km/hr and runs at a speed of 9 km/hr. How much time will the man require to cover a distance of 18 km, if he completes half of the distance, i.e., (9) km on foot and the other half by running?
Options:
(A) 4
(B) 5
(C) 6
(D) 8
(E) 9
answer:
Stream of consciousness: Required time = (9)/3 + (9)/9 = 4 hours. The answer is (A).