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The wheels of a car have a radius of 35 cm. How many revolutions per minute does each wheel make when the car runs at 99 km/h? (Take π = 22/7)

Competition practiceMensuration

A375
B1500
C45000
D750

Step-by-Step Solution

Circumference

= 2 \times \frac{22}{7} \times 35 = 220

cm. Distance per minute

= \frac{99 \times 100000}{60} = 165000

cm.

\frac{165000}{220} = 750

.

Answer: D) 750

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