Chain Rule - Arithmetic Aptitude Questions and Answers

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A man completes of a job in 10 days. At this rate, how many more days will it takes him to finish the job?

7 $\frac { 1 } { 2 }$

Answer : Option B

Explanation :

Work done = $\frac { 5 } {8 }$

Balance work =[1- $\frac { 5 } {8 }$ ]= $\frac { 3 } {8 }$

Let the required number of days be x.

Then, $\frac { 5 } {8 }$ : $\frac { 3 } {8 }$ =:;10:X $\frac { 5 } {8 }$ x x = $\frac { 3 } {8 }$ *10

x =[ $\frac { 3 } {8 }$ *10* $\frac {8 } {5}$ ]

x = 6.

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