Maths / Direct and Inverse Variation / Direct Variation

QUESTION
 

10 People can dig a well in 6 days. How many extra men should be employed so as to finish the work in 4 days.

EXPLANATION
Explain TypeExplanation Content
Text

Let the total number of men be x.

No of people    10     x

No of days           6       4

it is problem of inverse variation xy =k

10X6=xX4

x=frac{10X6}{4}=15

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