ICSE Class 7 Answered
If the driving wheel of a bicycle makes 560 revolutions in 1.1km , what is it's radius?
Asked by Shumbemolotha9 | 16 Sep, 2018, 07:49: AM
Expert Answer
Distance travelled in 560 revolutions = 1.1 km = 1100 m
Circumference of a circel = 2
r
r number of revolutions = 560
Therefore,
560 × 2 × 
× r = 110
× r = 110 r = 0.3125 m or 31.25 cm
Answered by Yasmeen Khan | 17 Sep, 2018, 11:45: AM
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