if 3 men or 5 boys take 4 days to do a certain work hie ling will 3 men and 7 boys ti finish the work
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Step-by-step explanation:
According to question 3men= 5 boys
so, it means 5 boys take 4 days
It is inverse proportion
therefore, 5*4= 12*x
= 20/12=x
= 5/3=x
we have multiplied 12 to x because 7 boys +3 men= 12
since, 3 men = 5 boys
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