1.  A can run 22.5 m while B runs 25 m. In a kilometre race B beats A by:
A. 100 m
B. 111(1 / 9) m
C. 25 m
D. 50 m

Answer: Option A

Explanation:

When B runs 25 m, A runs 45 m.
2

When B runs 1000 m, 

A runs45x1x 1000m= 900 m.
225


B beats A by 100 m.