Question 41
Mensuration of Plane ShapesA bicycle wheel of radius 42cm is rolled over a distance 66 metres. How many revolutions does it make? [Take π = 22/7]
- A.2.5
- B.5
- C.25
- D.50
Show the answer and explanation
Answer: C (25)
Explanation
Circumference = 2 × 22/7 × 42 = 264 cm. 6600 ÷ 264 = 25 revolutions.