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Question

Karan solves a question in 15 seconds. One of his friends challenges him that he can complete the work in one-fourth of the time that Karan takes. What is the time taken by Karan's friend to complete the work?

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Solution

Time taken by Karan to solve a question= 15 seconds

As per the question,

Time taken by Karan's friend to solve the question
= 14 of the time taken by Karan to solve the question
=15×14
=15×254×25
= 375100
= 3.75 seconds

Hence, Karan's friend will take 3.75 seconds to solve the question.


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