The diameter of the wheel of a car is84 cm and the speed of car is72 k – InterviewSolution

1.	The diameter of the wheel of a car is84 cm and the speed of car is72 km/h. The no. of revolutions madeby the wheel in 11 minutes is(1) 5000(2) 500(3) 6000(4) 600
Answer» Ans is 5000.speed=72km/hr= 1200 m/mincircumference= π.84rpm= distance traveled in 1 min/ circumferencerpm= 1200/3.14.84= 454.71revolution in 11 min= rpm11= 454.7111=5001.87

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