Model 6  Efficiency of the worker Practice Questions Answers Test with Solutions & More Shortcuts

Question : 26 [SSC FCI Assistant Grade-III 2012]

A can do a piece of work in 70 days and B is 40% more efficient than A. The number of days taken by B to do the same work is

a) 45 days

b) 40 days

c) 60 days

d) 50 days

Question : 27 [SSC CPO S.I.2006]

Kamal can do a work in 15 days. Bimal is 50 per cent more efficient than Kamal in doing the work. In how many days will Bimal do that work?

a) 10$1/2$ days

b) 14 days

c) 12 days

d) 10 days

Question : 28 [SSC CHSL 2012]

A is thrice as good a workman as B and is, therefore, able to finish a piece of work in 60 days less than B. The time (in days) in which they can do it working together is

a) 23$1/4$ days

b) 22 days

c) 22$1/2$ days

d) 23 days

Question : 29 [SSC CGL Prelim 2003]

Babu and Asha can do a job together in 7 days. Asha is 1$3/4$ times as efficient as Babu. The same job can be done by Asha alone in

a) $28/3$ days

b) $49/4$ days

c) $49/3$ days

d) 11 days

Question : 30 [SSC CGL Tier-II 2013]

Sunil completes a work in 4 days, whereas Dinesh completes the work in 6 days. Ramesh works 1$1/2$ times as fast as Sunil. The three together can complete the work in

a) 1$5/19$ days

b) 1$5/12$ days

c) 1$5/7$ days

d) 1$3/8$ days