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

Answer: Option C

B covers 35 m in 7 seconds.
B covers 200 m in
= $$\left(\frac{7}{35}\times 200\right)$$   sec = 40 sec
Time taken by A
= (40 - 7) sec
= 33 sec