30 men working 8hr per day can dig a pound in 16 days By working How many hr per day can 32men dig two same Pond in 20 day ??
ans:-6 how? when two pond dig then w2=2 and w1=1
Answers
Given : 30 men working 8hr per day can dig a pound in 16 days
To Find : By working How many hr per day can 32 men dig two same Pond in 20 day
Solution:
30 men working 8hr per day can dig a pound in 16 days
=> a pound can be dig in = 30 * 16 * 8 man hrs
2 pound can be dig in = 2 * 30 * 16 * 8 man hrs
Let say By working x hrs per day32 men can dig two same Pond in 20 day
=> 32 * 20 * x = 2 * 30 * 16 * 8
=> 32 * 2 * x = 2 * 3 * 16 * 8
=> x = 12
Answer is 12 days
If Question is : dig the same Pond in 20 days
then 32 * 20 * x = 30 * 16 * 8
=> x = 6 days
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