Interview Question

Created by admin on Mon, 19/11/2012 - 16:48
Explanation: 

To type a manuscript karthik took y hours.
Therefore his speed in typing = 1/y.
He was called away after 2 hours of typing.
Therefore the work completed = 1/y * 2.
Therefore the remaining work to be completed = 1 - 2/y.
(i.e.) work to be completed = (y-2)/y.

Question: 

It takes Mr. Karthik y hours to complete typing a manuscript. After 2 hours, he was called away. What fractional part of the assignment was left incomplete?

Language: 
Quantitative Aptitude
Answer: 

(y - 2) / y.