Math, asked by ganeshganni4446, 11 months ago

Jaidev takes 2—1/5 minutes to walk across the school ground. Rahul takes 7/4 minutes to do the same. Who takes less time and by what fraction?

Answers

Answered by amitnrw
3

Answer:

Jaidev takes lesser time by 7/20 min than Rahul

Step-by-step explanation:

Jaidev Takes  7/5  mins

Rahul Takes 7/4 mins

7/5 < 7/4

so Jaidev takes lesser time

7/4  - 7/5

= 35/20 - 28/20

= 7/20

so Jaidev takes lesser time by 7/20 min than Rahul

Answered by shaashwat2710
0

Answer:

Step-by-step 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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