A car is 70 cm in diameter of each wheel. If the speed of the car is 60 kmph, will each wheel complete the time in 10 minutes?
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Answer:
Diameter = 70 cm
Circumference = \pi d=\frac{22}{7}\times70=220=\frac{220}{100}m
No. of revolutions in 1 km
= 1km\ \div\frac{220}{100}m
= 1\times1000\times\frac{100}{220}m=\frac{5000}{11}=454\ \frac{6}{11}km
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