English, asked by supreet492, 11 months ago

9. Jaidev takes 2 minutes to walk across the school ground. Rahul takes minutes
to do the same. Who takes less time and by what fraction?​

Answers

Answered by shaashwat2710
1

Answer: Rahul takes \frac{9}{20}

Explanation:Time taken by Jaidev = \frac{11}{5}  

5

11

​  

 minutes

Time taken by Rahul = \frac{7}{4}  

4

7

​  

 minutes

Difference = \frac{11}{5}-\frac{7}{4}=\frac{\left(11\times4\right)-\left(7\times5\right)}{20}=\frac{44-35}{20}=\frac{9}{20}  

5

11

​  

−  

4

7

​  

=  

20

(11×4)−(7×5)

​  

=  

20

44−35

​  

=  

20

9

​  

 

Hence, Rahul takes \frac{9}{20}  

20

9

​  

 less time than Jaidev.

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