A boy is running at a speed of p kmph to cover a distance of 1 km. But, due to the slippery ground, his speed is reduced by q kmph (p > q). If he takes r hours to cover the distance, then:

A boy is running at a speed of p kmph to cover a distance of 1 km. But

1.	A boy is running at a speed of p kmph to cover a distance of 1 km. But, due to the slippery ground, his speed is reduced by q kmph (p > q). If he takes r hours to cover the distance, then:
A.	$\frac{1}{r} = p - q$$
B.	$r = p - q$$
C.	$\frac{1}{r} = p + q$$
D.	$r = p + r$$
Answer» B. $r = p - q$$

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A boy is running at a speed of p kmph to cover a distance of 1 km. But, due to the slippery ground, his speed is reduced by q kmph (p > q). If he takes r hours to cover the distance, then:

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