Salman and Amir have been assigned to complete an advertisement. Amir started working 2 days after Salman. 5 days after Amir has started working.Salman and Amir to complete the work on their own respectively?

 

Salman and Amir have been assigned to complete an advertisement. Amir started working 2 days after Salman. 5 days after Amir has started working, the director Kara Johar found that still 9/20 of the work is incomplete. When the advertisement was completed, it was found that Salman has done 60% of the work, while Amir had done the remaining. How many days would it take for Salman and Amir to complete the work on their own respectively?

 

A.    20 days, 25 days

B.    10 days, 20 days

C.    15 days, 25 days

D.    10 days, 15 days

 

C.  20 days, 25 days

 

In this question we can go through options,

Let us consider option (a)

Efficiency of Salman= 5%

Efficiency of Aamir= 4%

So, after 7 days Salman did 5*7=35% work.

Aamir did= 5*4=20% work.

So, Total work completed after 7days=55%

Work left=45% which is 9/20.

So, the first condition is satisfied.

Now, they would take 45/(4+5)=5 more days to complete the remaining work.

So, Salman does= 35+5*5=60% of the work.

And Aamir does 40% of the work.

So, it is satisfied.

 

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