Quantitative Aptitude Ques 2165

Question: The radius of a wheel is 21 cm. How many revolutions will it make in travelling 924 m? [use $ \pi =22/7 $ ]

Options:

A) 7

B) 11

C) 200

D) 700

Show Answer

Answer:

Correct Answer: D

Solution:

  • Radius of wheel = 21 cm Circumference $ =2\pi r=2\times \frac{22}{7}\times 21=132cm $

$ \therefore $ Number of revolutions $ =\frac{924}{132}\times 100=7\times 100=700 $

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