Question

Lala takes 4hours to cover a distance of12km.The time taken by him to travel 27km is-

Answer 1

12 km in 4 hr
1 km in 4/12 hr
27km in 4/12 * 27=9 hr

Answer 2

12 kms is travelled by Lala in 4 hours.
So 1 km is travelled in 4/12 hours=1/3 hours.
Therefore 27 kms will be travelled by Lala in 1/3 x 27 hours=9 hours.