Aptitude tests about time and work

There are some aptitude test questions about time and work Aptitude tests about time and work 1. Laura can do a piece of work in 20 days. Pe...

There are some aptitude test questions about time and work

Aptitude tests about time and work

1. Laura can do a piece of work in 20 days. Peter is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:

A. 15 B. 16 C. 18 D. 25

2. A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:

A. 4 days B. 6 days C. 8 days D. 12 days

3. A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:

A. 15 days B. 20 days C. 25 days D. 30 days

4. A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

A. 12 days B. 15 days C. 16 days D. 18 days

5. A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone?

A. 30 days B. 40 days C. 60 days D. 70 days

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