A boy cycles a distance of 640 m in 2 minutes and 40 seconds. What is the speed of the cycle?

4 m/s

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8 m/s

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12 m/s

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16 m/s

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Solution

The correct option is A 4 m/s
Distance covered = 640 m
Time taken = 2 min 40 sec
= $2$ $\times 60 + 40 = 160 s$ (because 1 minute =60seconds)
$∴ S p e e d = \frac{D i s t a n c e}{T i m e} = \frac{640}{160} = 4 m / s$

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A boy cycles a distance of 640 m in 2 minutes and 40 seconds. What is the speed of the cycle?

The correct option is A 4 m/sDistance covered = 640 mTime taken = 2 min 40 sec= 2 ×60+40=160s (because 1 minute =60seconds)∴Speed=DistanceTime=640160=4m/s

The correct option is A 4 m/s
Distance covered = 640 m
Time taken = 2 min 40 sec
= $2$ $\times 60 + 40 = 160 s$ (because 1 minute =60seconds)
$∴ S p e e d = \frac{D i s t a n c e}{T i m e} = \frac{640}{160} = 4 m / s$