Multiple choice

A man, a woman and a boy can do a work in 3 days, 4 days and 12 days respectively. How many boys should help a man and a woman to do the same piece of work in ¼ day? एक पुरूष, एक महिला और एक लड़का एक कार्य को क्रमशः 3 दिन, 4 दिन और 12 दिनों में पूरा कर सकते है । कितने लड़कों की सहायता से एक पुरूष और एक महिला उसी काम को ¼ दिन में पूरा करेगें?

  1. 37

  2. 40

  3. 41

  4. 47
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In 1/4 day, a man completes 1/12 of the work and a woman completes 1/16. Together they do 7/48 of the work. The remaining 41/48 must be done by boys. Each boy does 1/48 of the work in 1/4 day. So we need 41 boys. Options A, B, and D underestimate the work required.

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