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Question

Jaidev takes 215minutes to walk across the school ground. Rahul takes 74minutes of do the same. Who takes less time and by what fraction?


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Solution

Step 1: Given data:

Given Jaidev takes 215minutes to walk across the school ground.

Rahul takes 74minutes to walk across the school ground.

We know that Improperfraction=Number×Denominator+NumeratorDenominator

The improper fraction of 215 is

215=2×5+15=10+15=115

Step 2: To find Who takes less time and to find by what fraction of time he takes

Consider

115?7411×4?7×544?3544>35

Since 35 is less than 44

Hence, Rahul takes less time to walk across the school ground.

Step 3: To find by what fraction of time he takes:

Now, we find who takes less time

Consider

115?-74=11×45×4-7×54×5=4420-3520=44-3520=920

Hence, Rahul takes less time to walk by 920minutes.


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