Question
10 men can reap a field in 20 days. 10 men reaped the field for 10 days and after 10 days 10 more men join them. When will the work be finished?
Answer: Option A
:
A
Total number of work days required =10 x 20 = 200
Since 10 men worked for 10 days, 10 x 10 = 100 days work is already done.
So, 200 - 100 = 100 days of work is left.
Once, 10 more men joined, total number of workers=20
So, number of days required more =10020=5
Thus, total number of days = 10 + 5 = 15.
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:
A
Total number of work days required =10 x 20 = 200
Since 10 men worked for 10 days, 10 x 10 = 100 days work is already done.
So, 200 - 100 = 100 days of work is left.
Once, 10 more men joined, total number of workers=20
So, number of days required more =10020=5
Thus, total number of days = 10 + 5 = 15.
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