Question
P can run 1km in 5 minutes 10 seconds and Q in 5 minutes
20 seconds. How many meters start can P give Q in a kilometer race so that the they both reach on time?Solution
Time taken by P to run 1 km = 310 seconds Time taken by Q to run 1 km = 320 seconds P can give Q a start of (320 – 310) seconds = 10 seconds In 320 seconds, Q runs 1000m In 10 seconds, Q runs (1000/320) × 10 metres = 125/4 m P can give Q a start of 125/4 metre .
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