[Jail Warder S-3 2021 ]
1. Find the wrong number in the following series.
3,8,15, 24, 34, 48, 63
8
34
48
63
2. Given that A:B = 2:3, B : C = 1:2, C: D = 3:5 and D: E = 2:5. Find (A+B) : (D+E) =
1:4
1:6
1:7
1:5
3. The present ratio of ages of A and B is 4:5. 18 years ago, the ratio was 11:16. Find the sum total in years of their present ages.
90
105
110
80
4. In an examination, 80% students passed in Physics, 70% in Chemistry while 15% failed in both the subjects. 325 students passed in both the subjects. Find the total number who appeared in the examination.
500
400
300
600
5. If the value of one article depreciated every year by 12o, then what is the value of article after 3 years, if the original cost of such article was Rs. 5,00,000 ?
350000
320000
345625
340736