a) 40 sec
b) 47 sec
c) 33 sec
d) None of these
Answer: c
Explanation: B runs 35m in 7sec
B covers 200m in $$ {\frac{7}{{35}} \times 200} = 40\sec $$
B’s time over the course = 40 sec
A’s time over the course (40 – 7) sec = 33 sec
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