Multiple choice

A works twice as compared to B. If together they can do a job in 24 days, in how many days will B finish the work?

  1. 76 days

  2. 64 days

  3. 72 days

  4. 75 days

  5. 79 days
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A's efficiency is twice B's, so if B does 1 unit per day, A does 2 units per day. Together they do 3 units daily, completing the job in 24 days, meaning total work = 72 units. B alone would take 72/1 = 72 days. Options A, B, D, E are incorrect as they don't match the calculation.

Keep practicing — related questions