Question

A can run $22.5$ m while B runs $25$ m same time .In a kilometre race B beats A by:

• A. $100$ m
• B. $111\frac{1}{9}m$
• C. $25$ m
• D. $50$ m

Answer 1

Answer: (A)

$100$ m

In the same time, B runs $25m$ and A runs $22.5m$.

Now in a kilometer race, if B runs $1000m$ $i.e.25\times 40$

then A will run $22.5\times 40=900m$

Now, B will beat A in the race by $(1000-900)m$ = $100m$

Option $\text{A}$ is correct.