Question

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

Answer 1

Answer:

Rahul takes less time by 19/20 minutes

Step-by-step explanation:

Time taken by Jaidev = 2 1/5 = 11/5

Time taken by Rahul = 5/4

11/5 - 5/4 Lcm = 20

11(4)/ 5(4) = 44/20

5(5)/4(5) = 25/20 - Rahul takes less time

44-25/20 = 19/20

The difference = 19/20 minutes