Question

A boy is running at a speed of p km/h to cover a distance of 1 km but due to slippery ground his speed is reduced by q km/h $(p > q).$ If he takes r hours to cover the distance, which of the following condition is true:

• A. $\frac{1}{r}=(p-q)$
• B. r=(p-q)
• C. $r=\frac{1}{p+q}$
• D. r=p+q

Answer 1

Answer: (A)

$\frac{1}{r}=(p-q)$

Answer 2

The correct option is (A): $\frac{1}{r}=(p-q)$