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Nikhil is thrice as efficient as Kanak and can finish an assignment in 6 days less than Kanak. How many days Kanak will take to finish the same assignment?

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Nikhil is thrice as efficient as Kanak and can finish an assignment in 6 days less than Kanak. How many days Kanak will take to finish the same assignment?
1). 4 days
2). 7 days
3). 9 days
4). 11 days


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1 vote
Answered by on | Votes 1 |

Efficiency of Nikhil : Efficiency of Kanak = 3 : 1

Nikhil will take 1/3 time as compared to Sunita

Let us assume Kanak will take 3x days to complete an assignment and Nikhil will take x days.

⇒ 3x - x = 6

⇒ x = 3

∴ Kanak will take 3 × 3 = 9 days

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