Multiple choice

Find the number of revolutions a wheel of diameter 28 cm makes in travelling a distance of 352 m.

  1. 200

  2. 176

  3. 154

  4. 182

  5. None of these
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A Correct answer
Explanation

It is given that: Diameter of the wheel = 28 cm, so radius = 28/2 = 14 cm. Now, circumference of wheel = 2*pie*r = (2*22*14)/7 = 176 cm. Number of revolutions in 352 m = 352*100/176 = 200

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