RRB Junior Engineer Model Question Papers - Numerical Aptitude Part 3
21) 1646 − 13 × 18 + 249 = ? + 875
(a) 786
(b) 687
(c) 2486
(d) 2356
Ans:- A
22) 2, 6, 30, 60, 130, ?
(a) 210
(b) 216
(c) 200
(d) 160
Ans:- A
23) If 9 men & 15 women can do a piece of work in 25 days, then 39 men and 10 women will complete the same work in
(a) 7 days
(b) 6 days
(c) 5 days
(d) 4 days
Ans:- C
24) The largest angle of a quadrilateral is two times the smallest angle. If the angles form a series (a, a+d, a+2d, a+3d), the other two angles would be
(a) 600, 1200
(b) 800, 1000
(c) 900, 1000
(d) 700, 900
Ans:- B
25) If 10x+3y : 5n+2y = 9:5, then x : y is
(a) 3:5
(b) 5:3
(c) 2:5
(d) 1:2
Ans:- A
26) The present age of Ramesh is ¼ of his father's age. After 4 years, the sum of their ages will be 68. What is the present age of Ramesh?
(a) 10 yrs
(b) 15 yrs
(c) 16 yrs
(d) 12 yrs
Ans:- B
27) If the compound interest on a certain sum for 2 yrs at 10% annum is Rs. 2100, the simple interest on it at the same rate for 2 yrs will be.
(a) Rs. 1700
(b) Rs. 1800
(c) Rs. 1900
(d) Rs. 2000
Ans:- D
28) 12% 650 + ? % of 400 = 110
(a) 25
(b) 18
(c) 8
(d) 80%
Ans:- C
29) The angles ABC are 5x0, 7x0 and 6x0 respectively. What is the measure of the Õ BCA?
(a) 500
(b) 600
(c) 700
(d) cannot decide
Ans:- C
30) The area of a rectangular field is 10 times of its length. If the breadth of the field is 10m, what is its length?
(a) 40m
(b) 25m
(c) 20m
(d) data inadequate
Ans:- D
31) A person travels equal distance with speed of 3 km/hr; 4 km/hr and 5 km/hr. and takes a total time of 47 minutes. The total distance (in km) is
(a) 1
(b) 3
(c) 4
(d) 5
Ans:- A
32) If 4 workers can make 42 toys in 6 days, how many toys can 12 workers make in 3 days?
(a) 63
(b) 28
(c) 252
(d) 7
Ans:- A
33) The value of log 10000 is
(a) 4
(b) 8
(c) 5
(d) 6
Ans:- A
34) Sheet metal required to make a hollow cone of height 24 cm and radius 7 cm is
(a) 407 cm2
(b) 250 cm2
(c) 704 cm2
(d) 400 cm2
Ans:- C
35) The salary of an employee was reduced by 40% first and then was increased by 50%. How much percent did he lose?
(a) 15%
(b) 20%
(c) 10%
(d) 12%
Ans:- C
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