q: The price of a T.V. set worth Rs. 20000 is to be paid in 20 installments of Rs. 1000 each. If the rate of interest be 6% per annum, and the first installment be paid at the time of purchase, then the value of the last installment covering the interest as well will be?
Options:
(A) 19002
(B) 19028
(C) 27788
(D) 19000
(E) 27711
a: Stream of consciousness: Money paid in cash = Rs. 1000
Balance payment = (20000 - 1000) = Rs. 19000 The answer is (D).

question: The length of a rectangle is increased by 25% and its breadth is decreased by 20%. What is the effect on its area?
Options:
(A) 1288
(B) 1299
(C) 1000
(D) 10000
(E) 2887
answer: Stream of consciousness: 100 * 100 = 10000
125 * 80 = 10000 The answer is (D).

q: a contract was signed to complete a job in 30 days. after how many days can 5 men leave then so that the job can be completed in 35 days
Options:
(A) 30 days.
(B) 35 days.
(C) 45 days.
(D) 55 days.
(E) 65 days.
a: Stream of consciousness: If no of men used initially is x, then after (35-x) days 5 men can leave so that the job can be completed in 35 days. The answer is (B).

question: A train of 24 carriages, each of 60 meters length, when an engine also of 60 meters length is running at a speed of 60 kmph. In what time will the train cross a bridge 1.1 km long?
Options:
(A) 2 mins 14 sec
(B) 2 mins 34 sec
(C) 156 sec
(D) 134 sec
(E) 2 mins 44 sec
answer: Stream of consciousness: D = 25 * 60 + 1100 = 2600 m
T = 2600/60 * 18/5 = 156 se The answer is (C).

q: A train 100 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) 299
(D) 277
(E) 21
a: Stream of consciousness: S = (100 + 300)/45 = 400/45 * 18/5 = 32 The answer is (A).

q: A 360 meter long train crosses a man standing on the platform in 6 sec. What is the speed of the train?
Options:
(A) 229
(B) 108
(C) 278
(D) 216
(E) 112
a:
Stream of consciousness: S = 360/6 * 18/5 = 216 kmph The answer is (D).