Multiple choice

If 4 men or 6 women can do a piece of work in 12 days working 7 hours a day; how many days will it take to complete a work twice as large with 10 men and 3 women working together 8 hours a day? यदि 4 पुरूष या 6 स्त्रियां एक कार्य 7 घंटे कार्य करके 12 दिनों में कर सकते हैं। तदुनुसार, उसी कार्य का दुगना होने पर 10 पुरूष और 3 महिलाएं 8 घंटे प्रतिदिन कार्य करके कितने दिनों में पूरा कर सकेंगे?

  1. 6

  2. 7

  3. 8

  4. 10
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The work rate of 4 men equals 6 women, so 1 man = 1.5 women. Original work requires 336 man-hours (4 × 12 × 7). For twice the work (672 man-hours), 10 men + 3 women (equivalent to 12 men) working 8 hours/day complete it in 672 ÷ (12 × 8) = 7 days.

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