Piyush can run a km in 8 minutes and Kishan in 8 minutes 20 seconds. How many meters start should Piyush give Kishan so that the race may end in a dead heat?
Explanation:
Piyush runs a km in 8 mins = 480 secs and Kishan runs a km in 500 secs.
∴ Piyush beats Kishan by 20 secs.
So, in order to end the race in a dead heat, Piyush should give Kishan a start of ‘x’ m or 20 secs for Kishan,
In 500 secs Kishan runs 1000 m.
∴ In 20 secs Kishan will run 1000/500 × 20 = 40 m
Hence, option (a).
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