Maths / Direct and Inverse Variation / Time and Work

QUESTION
 

If 5 men can do a piece of work in 30 days, in how many days can 15 men do the same amount of work?

OPTIONS
A. 

10

B. 

90

C. 

6

D. 

12

Right Option : A

EXPLANATION
Explain TypeExplanation Content
Text

Work done by 5 men in 30 days = 1

Work done by 1 men in  1 day = large frac{1}{5 X 30}

Work done by 15 men  in 1 day =large frac{1}{5 X 30} X 15= frac{1}{10}

The work will be completed in 10 days

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