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CBSE Class 8 Answered

8 persons can complete a certain job in 12 days. How many days will it take if 24 persons do the same job?
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
answered-by-expert Expert Answer

If more persons do the same job then definitely it will take less time. Thus number of persons and number of days vary inversely.

Given: 8 persons complete the job in 12 days.

Let 24 persons compete the job in y days.

Now, in case of inverse variation the product of two quantities remain same, therefore

Hence, 24 persons will complete the job in 4 days.

Answered by | 04 Jun, 2014, 15:23: PM

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