if 20 men do a work in 10 days then 15 men do the same work in how many days
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Using proportional method
20:10:15:x
10/15
2/3*20
40/3
It can be done by unitary too
20:10:15:x
10/15
2/3*20
40/3
It can be done by unitary too
arushrma:
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please solve my problem
very bad very difficult and wrong
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