Time And Work(Quantitative Aptitude ) Questions and Answers
Question 1.
If 12 men do a piece of work in 80 days, in how many days will 16 men do it?
40 days
50 days
60 days
70 days
Explanation:-
Answer: Option C. -> 60 days
Question 2.
16 men can complete a piece of work in 25 days. In how many days can 20 men complete that piece of work?
10 days
20 days
30 days
40 days
Explanation:-
Answer: Option B. -> 20 days
Question 3.
A and B can finish a piece of work in 16 days while A alone can do the same work in 24 days. In how many days will B alone complete the work?
48 days
50 days
52 days
54 days
Explanation:-
Answer: Option A. -> 48 days
Question 4.
A can finish a piece of work in 5 days. B can do it in 10 days. They work together for two days and then A goes away. In how many days will B finish the work?
3 days
4 days
5 days
6 days
Explanation:-
Answer: Option B. -> 4 days
Question 5.
Ramesh can finish a piece of work in 20 days and Sushil in 25 days. They both work together for 5 days and then Sushil goes away. In how many days will Ramesh complete the remaining work?
9 days
10 days
11 days
12 days
Explanation:-
Answer: Option C. -> 11 days
Question 6.
A and B can do a piece of work in \(6\frac{2}{3}\) days and 5 days respectively. They work together for 2 days and then A leaves. In how many days after that will B complete the work alone?
\(1\frac{1}{2}\) days
2 days
\(2\frac{1}{2}\) days
3 days
Explanation:-
Answer: Option A. -> \(1\frac{1}{2}\) days
Question 7.
9 men and 12 boys finish a job in 12 days. 12 men and 12 boys finish it in 10 days. In how many days will 10 men and 10 boys finish the job?
10 days
12 days
14 days
16 days
Explanation:-
Answer: Option B. -> 12 days
Question 8.
A piece of work which could be finished in 9 days was finished 3 days earlier after 10 more men joined. The number of men employed was
16 days
18 days
20 days
22 days
Explanation:-
Answer: Option C. -> 20 days
Question 9.
5 men and 12 boys finish a piece of work in 4 days. 7 men and 6 boys do it in 5 days. The ratio between the efficiencies of a man and of a boy is
5 : 6
6 : 5
8 ; 9
9 : 8
Explanation:-
Answer: Option B. -> 6 : 5
Question 10.
If A, B and C together can finish a piece of work in 4 days, A alone in 12 days and B in 18 days, then C alone can do it in