Jaidev takes 215 minutes to walk across the school ground. Rahul takes 74 minutes to do the same. who takes less time and by what fraction?
Time taken by Jaidev to walk =215 minutes
=115 minutes
Time taken by Rahul to walk across the ground =74 minutes
Now, compare the fractions
115
=11×45×4
=4420
74
=7×54×5
=3520
4420>3520
⇒74<115
So, Rahul takes lesser time than Jaidev.
Difference =115−74
=11×45×4−7×54×5
=4420−3520
=920
So, Rahul takes lesser time than Jaidev, by 920 minutes.