5
A, B and C are three contestants in a km race. If A can give B a start of 40m and A can give C a start of 64m, how many metre’s start can B give C
Explanation:
While A covers 1000 m, B covers (1000  40) m = 960 m

and C covers (1000  64) m or 936 m.

When B covers 960 m, C covers 936 m.


∴ B can give C a start of (1000  975) or 25 m.
