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… · ABC26GN3616
Subject: General Aptitude · Chapter: Time and Distance · Exam: M.B.A. 2006
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 $q \mathrm{kmph}(p>q)$. 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)$r=p+q$
Answer
Answer (as printed): A
Explanation
Speed $=\frac{\text { Distance }}{\text { Time }} \Rightarrow p-q=\frac{1}{r}$.
Explanation as extracted from the printed page; notation may be imperfect.