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A girl runs a distance of 300 meters in 60 seconds. Calculate the speed of the girl in (a) m/s & (b) km/h. |
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Answer» (a) speed = 300÷60 =5m/s (b) 300 m =300/1000km =3/10 =1 /60 hr speed = 3/10 ÷ 1/60 = 3/10 ×60 = 18 km/hr |
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