Multiple choice

Niranjan is twice as good worker as Bhola and together they can complete a piece of work in 15 days. In how many days can the work be completed by Bhola alone?

  1. 45 days

  2. 22 days

  3. 37 days

  4. 30 days

  5. 43 days
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Niranjan = 2 * Bhola. Together, they do 3 units of work per day. 15 days * 3 units/day = 45 units total. Bhola does 1 unit/day. Time for Bhola = 45 / 1 = 45 days.

AI explanation

Since Niranjan is twice as good a worker as Bhola, Niranjan takes half the time Bhola takes for the same work. If Bhola takes x days, their combined one day work is 1/x + 2/x = 3/x. Given that they finish the work in 15 days together, their one day work is 1/15, so 3/x = 1/15, which means x equals 45 days.

Keep practicing — related questions