Kabir was asked to finish testing of an application in 15 days, which is generally completed by him in a span of 20 days. His project manager has asked his colleague, Vikrant to help him in testing the application. This being a new application for Vikarnt, he is only 80% as efficient as Kabie. Working together, they will be able to finish the testing in how many days?

 

Kabir was asked to finish testing of an application in 15 days, which is generally completed by him in a span of 20 days. His project manager has asked his colleague, Vikrant to help him in testing the application. This being a new application for Vikarnt, he is only 80% as efficient as Kabir. Working together, they will be able to finish the testing in how many days?

A.    100/9 days

B.    100/11 days

C.    9/7 days

D.    100/7 days

E.    None of these

 C. 100/9 days

 

 

Kabir takes 20 days to complete the work.

Vikrant is 80% as efficient as kabir.Therefore, he can do the same work in 25 Days.

Working together,they can complete the work in

=1/20+1/25

=9/100

=100/9days

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