(Ans). (A)
(Question). 4000 was divided into two parts such a way that when first part was invested at 3% and the second at 5%, the whole annual interest from both the investments is Rs.144, how much was put at 3%?
Options:
(A) 2800
(B) 2500
(C) 2700
(D) 3000
(E) 3500
(CoT). (x*3*1)/100 + [(4000 - x)*5*1]/100 = 144
3x/100 + 200 5x/100 = 144
2x/100 = 56 e x = 2800

(Ans). (B)
(Question). Find the simple interest on Rs.500 for 9 months at 6 paisa per month?
Options:
(A) 287
(B) 270
(C) 276
(D) 129
(E) 211
(CoT). I = (500*9*6)/100 = 270

(Ans). (B)
(Question). A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 290 m long?
Options:
(A) 40 sec
(B) 52 sec
(C) 45 sec
(D) 48 sec
(E) 50 sec
(CoT). Speed = 45 * 5/18 = 25/2 m/sec
Total distance covered = 360 + 290 = 650 m
Required time = 650 * 2/25 = 52 sec

(Ans). (E)
(Question).
A wheel rotates 20 times every minute and moves 35 cm during each rotation. How many metres does the wheel move in one hour?
Options:
(A) 6 metre
(B) 120 metre
(C) 220 metre
(D) 1200 metre
(E) 420 metre
(CoT). Number of times wheel moves in 1 hour = 20 * 60 = 1200
:. Distance moves = (1200*35) cms = 42000 cms
In metres = 420 metr