RRB GROUP-D Exam - Model Questions (Set-47)
RRB GROUP-D Exam - Model Questions (Set-47)
(a) 1
(b) 2
(c) 1/2
2. The H.C.F. of two numbers is 8. Which one of the following can never be their L.C.M.?
(a) 24
(b) 48
(c) 56
(d) 60
3. If the sum of two numbers is 22 and the sum of their squares is 404, then the product of the numbers is:
(a) 40
(b) 44
(c) 80
(d) 88
4. 1/0.04 is equal to:
(a) 1/40
(b) 2/5
(c) 5/2
(d) 25
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6. The sum of first 20 odd natural numbers is equal to :
(a) 210
(b) 300
(c) 400
(d) 420
(a) 625/16
(b) 625/8
(c) 625/32
(d) 16/ 625
8. (6.5 × 6.5 – 45.5 + 3.5 × 3.5) is equal to :
(a) 10
(b) 9
(c) 7
(d) 6
9. What number should be subtracted from both terms of the ratio 15 : 19 in order to make it 3 : 4?
(a) 9
(b) 6
(c) 5
(d) 3
10. If p : q = r : s = t : u = 2 : 3, then (mp + nr + ot) : (mq + ns + ou) is equal to :
(a) 1 : 3
(b) 1 : 2
(c) 2 : 3
(d) 3 : 2