Explanation : While deer makes 10 leaps, cheetah makes 6 leaps.
∴ Distance covered in 10 leaps by deer
= 10 x 1 = 10m
Distance covered in 6 h~aps by cheetah
= 6 x 2 = 12 m
Hence in six leaps, cheetah gains
12 - 10 = 2 m over the deer.
Cheetah has to gain 100 m over the deer.
So, total leaps required by cheetah
= 6/2 x 100 = 300