In a 100 meters race A runs at a speed of 1.66m/s. if A gives a start of 4m to B and still beats him by 12 second. What is the speed of B?
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Speed at which Sam runs = 1.66 m/s. = 60.24 + 12 seconds. = 72.24 seconds. Thus, the speed covered by Jack in that 100 m race is 1.328 m/s.
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