"A person has to cover a distance of 6 km in 45 minutes. If he covers one half of the distance
Channel: Doubtnut
Date: 2020-04-05

"A person has to cover a distance of 6 km in 45 minutes. If he covers one half of the distance in two-thirds of the total time; to cover the remaining distance in the remaining time; his speed (in km/hr) must be`6`b. `\ 8`c. `12`d. `15`"