Aptitude : : Time and Work Questions & Answers

  1. A and B together can complete a piece of work in 4 days while A alone can complete the same work in 12 days. B alone will be able to complete the same working in?

A. 5 days

B. 6 days

C. 4 days

D. 8 days

  1. A,B and C can complete a piece of work in 24, 6 and 12 days respectively.Working together,they will complete the same work in

A. 4 days

B. 1/24 days

C. 7/24 days

D. 24/7 days

  1. A man can do a piece of work in 5 days,but with the help of his son,he can do it in 3 days.In what time can the son do it alone?

A. $6\dfrac{1}{2}\text{ days}$

B. 7 days

C. $7\dfrac{1}{2}\text{ days}$

D. 8 days

  1. A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:

A. $9\dfrac{2}{5}\text{ days}$

B. $9\dfrac{1}{5}\text{ days}$

C. $9\dfrac{3}{5}\text{ days}$

D. 10 days

  1. A and B can do a piece of work in 12 days,B and C can do it in 15 days and C and A can do the same work in 20 days. How long would each take to complete the job?

A. $7\dfrac{5}{6}\text{ days}$

B. $15\dfrac{2}{3}\text{ days}$

C. $5 \text{ days}$

D. $10 \text{ days}$