Time and Work - Aptitude Questions and Answers Part 4

16. Rehana finishes reading a book in 20 days. Her sister Shabnam is 25% faster than her at reading. How many days will Shabnam take to finish reading the same book?

a. 15
b. 16
c. 18
d. 25


17. In a set up two friends Anne and Ben finish a work in 30 days. Ben and Charles take 6 days less the previous set up to finish the same work while Charles and Anne take 10 days less than the said set up to finish the same work. All the three friends work on an assignment for 10 days after which Ben and Charles leave. How many days more required by Anne to finish the remaining assignment alone?

a. 18 days
b. 24 days
c. 36 days
d. 30 days


18. 16 boys finish painting a building in 15 days while 20 girls take 16 days to finish the same task. Find the ratio of capacities of a boy and a girl.

a. 3 : 4
b. 4 : 3
c. 5 : 3
d. Data inadequate


19. To complete an assignment in 4 days, we need either 12 men or 15 women. 6 men take the project but stop working after 2 days. How many women will be required to finish the remaining work in 3 days?

a. 15
b. 18
c. 22
d. 27


20. Given:

i. 4 men and 6 boys can finish a job in 8 days.
ii. 3 men and 7 boys take 10 days to complete the same job.

In how many days will 10 boys complete the job?

a. 35
b. 40
c. 45
d. 50