Discussion Forum



1)

In a 200 m race ,A can give B 20 and C 38 m.In the same race B can give C.


A) 20

B) 90

C) 0.9

D) 180

Answer:

Option A

Explanation:

A : B = 200 : 180

A : C = 200 : 162

B : C = $\frac{B}{A}\times \frac{A}{C}$

=$\frac{180}{200}\times \frac{200}{162}$

=$\frac{180}{162}$

When B runs 180 m ,C runs 162 m.

When B runs 200 m ,C runs $(\frac{162}{180}\times 200)$

= 180 m

So , B can Give C 20 m