Discussion :: Chain Rule
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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?
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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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