Multiple choice

10 men can complete a work in 7 days and 10 children take 14 days to complete the work. How many days 5 men and 10 children will take to complete the work? 10 आदमी एक काम को 7 दिनों में पूरा कर सकते हैं और 10 बच्चे काम को 14 दिनों में पूरा कर सकते हैं। 5 आदमी और 10 बच्चे काम को पूरा करने में कितने दिन लेंगे?

  1. 5

  2. 7

  3. 3

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

Work rate: 10 men = 1/7 work per day, 10 children = 1/14 work per day. So 1 child = 1/2 man. 5 men + 10 children = 5 + 5 = 10 men. 10 men complete work in 7 days, so answer is 7 days.

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