"Grass in a lawn grows equally thick and at a uniform rate. It takes 24 days for 70 cows and 60 days
Channel: Doubtnut
Date: 12/04/2020

"Grass in a
 lawn grows equally thick and at a uniform rate. It takes 24 days for 70 cows
 and 60 days for 30 cows to eat the whole of the grass. How many cows are
 needed to eat the grass in 96 days?
(a) 18 (b) 20 (c) 24 (d) 36 (e) None of these"