two sprinters run the same race of 100 metres.one runs at a speed of 10 M per second and the other runs at 8 M per second. by what time will the first sprinter beat the others printer?
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Answer: 2.5 seconds
Step-by-step explanation: Sprinter 'a' runs at 10m/s and sprinter 'b' runs at 8m/s.
Sprinter 'a' takes= 100/10= 10s
Sprinter 'b' takes= 100/8= 12.5s
Sprinter 'a' is 12.5-10= 2.5s faster tham sprinter 'b'.
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