Question

Nandini takes 11/5 minutes to walk across the school ground. Rahul takes 7/4 minutes for the same. Who takes more time ? By how much ?​

Answer 1

Nandini takes - 11/5

Rahul takes - 7/4

So, Nandini takes 3/9 more minutes from rahul.

Answer 2

Case.1 Time taken by nandini

11/5×7/4=77/20

so,

77/20-11/5= 77-44/20 =33/20

Case.2

Time taken by Rahul

11/5×7/4=77/20

so,

77/20-7/4= 77-35/20 = 42/20

conclusion

Rahul taken more time 42/20