Model Questions for SSC CHSL (SET-117) ARITHMETIC
Model Questions for SSC CHSL (SET-117) ARITHMETIC
1. Three bellsring simultaneously at 11 a.m. They ring at regular intervals of 20 minutes, 30 minutes, 40 minutes respectively. The time when all the three ring together next is
(a) 2 p.m.
(b) 1 p.m.
(c) 1.15 p.m.
(d) 1.30 p.m.
2. A and B together can do a works in 12 days. B and C together do it in 15 days. If A’s efficiency is twice that of C, then the days required for B alone to finish the work is
(a) 60
(b) 30
(c) 15
(d) 15
3. A and B can do a work in 12 days, B and C can do the same work in 15 days, C and A can do the same time work in 20 days. The time taken by A, B and C to do the same work is
(a) 5 days
(b) 10 days
(c) 15 days
(d) 20 days
4. A is 50% as efficient as B. C does half of the work done by A and B together. If C alone does the work in 20 days, then A, B and C together can do the work in
(a) 17/3 days
(b) 20/3 days
(c) 6 days
(d) 7 days
5. The ratio of the volumes of water and glycerine in 240cc of a mixture is 1 : 3. The quantity of water (in cc) that should be added to the mixture so that the newratio of the volume of water and glycerine becomes 2:3 is
(a) 55
(b) 60
(c) 62.5
(d) 64
