A no.when divided by 242 gives a remainder 100, what remainder will be obtainedby dividingthe same no.18?
Options:
(A) 15
(B) 16
(C) 17
(D) 18
(E) 19

242 + 100 = 342/18 = 19 (Remainder) So the answer is: (E).

Pipe A can fill a tank in 5 hours, pipe B in 10 hours and pipe C in 30 hours. If all the pipes are open, in how many hours will the tank be filled?
Options:
(A) 2
(B) 2.2
(C) 3
(D) 3.5
(E) 4

Part filled by A + B + C in 1 hour = 1/5 + 1/10 + 1/30 = 1/3
All the three pipes together will fill the tank in 3 hours. So the answer is: (C).

A bullet train 140 m long is running at 60 kmph. In how much time will it pass a platform 160 m long?
Options:
(A) 34 Seconds
(B) 18 Seconds
(C) 41 Seconds
(D) 24 Seconds
(E) 29 Seconds

Distance travelled = 140 + 160m = 300m
Speed = 60 * 5/8 = 50/3m
Time = 300 * 3/50 = 18 Seconds So the answer is: (B).

Find the C.I. on a sum of Rs.1600 for 9 months at 20% per annum, interest being compounded quarterly?
Options:
(A) 3377
(B) 2889
(C) 2522
(D) 2678
(E) 7111
A = 1600(21/20)3 = 2522 So the answer is: (C).