Time and Work MCQ Set 3

Showing question 11 to 15 of total 20 MCQs

Solve the question on your notebook and check it by clicking (Answer and Explanation) below question.

Question No: 11

A is thrice as good a workman as B and takes 10 days less to do a piece of work than B takes. B alone can do the whole work in

1. 15 days
2. 10 days
3. 9 days
4. 8 days

Question No: 12

A can do a piece of work in 15 days and B alone can do it in 10 days. B works at it for 5 days and then leaves. A alone can finish the remaining work in

1. 5 days
2. 6 days
3. 7.5 days
4. 8.5 days

Answer: C

Explanation

Question No: 13

A can do a piece of work in 4 hours . A and C together can do it in just 2 hours, while B and C together need 3 hours to finish the same work. In how many hours B can complete the work ?

1. 10 hours
2. 12 hours
3. 16 hours
4. 18 hours

Question No: 14

A completes 80% of a work in 20 days. Then B also joins and A and B together finish the remaining work in 3 days. How long does it need for B if he alone completes the work?

Question No: 15

A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C

1. Rs. 300
2. Rs. 400
3. Rs. 500
4. Rs. 600

Answer: B

Explanation

If you are confused how we multiplied 1/8, then please study ratio and proportion chapter,

for small information, it is the C ratio divided by total ratio.