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Sudhir completed his office project in 30 days. Kavita is 20% more efficient than Sudhir. How many days will Kavita take to complete the same project? 


1. 24 days
2. 25 days
3. 35 days
4. 20 days
5. 22 days

1 Answer

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Best answer
Correct Answer - Option 2 : 25 days

Given 

Sudhir can complete his office project in 30 days

Formula Used

Work = Time × Efficiency 

Calculation

Let the days taken by Kavita to complete the project be x

Kavita is 20% more efficient than Sudhir.

The ratio of efficiency of Kavita and Sudhir = 120 : 100 = 6 : 5                                                                     

⇒ Proportion of time taken to complete the project

⇒ 6 : 5 : 30 : x

⇒ 6/5 = 30/x

⇒ x = {(5 × 30)/6}

⇒ x = 25 days

∴ Kavita will take 25 days to complete the work.

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