General Aptitude Time and Work Question #4629
Single Choice Not Set

QIf A can complete a task in the same amount of time as B and C working together, and A and B can complete the task in 10 days while C can complete it in 50 days, how long will it take B to complete the task on their own?

ID: #4629 Time and Work 221 views
Question Info
#4629Q ID
Not SetDifficulty
Time and WorkTopic

Choose the Best Option

Click any option to instantly check if you're correct.

  • A 15 days
  • B 20 days
  • C 25 days
  • D 30 days
Correct Answer

Explanation

If the work rate of A and B together is 1/10 of the task per day,
the work rate of C is 1/50 of the task per day,
and the combined work rate of A, B, and C is 1/6 of the task per day,
then the work rate of A is equal to the combined work rate of B and C.
Therefore, the work rate of B is (1/6 - 1/50) of the task per day,
or 1/25 of the task per day.
This means that B can complete the task in 25 days on their own

Share This Question

Challenge a friend or share with your study group.

Related MCQ Questions