Question

In a 200 metres race A beats B by 35 m or 7 seconds. A's time over the course is ?

• A. 40 sec
• B. 47 sec
• C. 33 sec
• D. None of these

Answer 1

Answer: (C)

33 sec

B runs 35 m in 7 sec.
$\therefore$ B covers 200 m in $\left(\begin{array}{c}\frac{7}{35}\times 200\end{array}\right)=40sec.$
B's time over the course = 40 sec.
$\therefore$ A's time over the course (40 - 7) sec = 33 sec.