alleryA wheel of diameter 84 cm makes 75 revolutions. The distance covered is
A99 m
B198 m
C264 m
D132 m
Answer & Solution
Correct answer: B. 198 m
1. Circumference = pi × 84 = (22/7) × 84 = 264 cm.
2. 75 revolutions = 75 × 264 = 19800 cm.
3. = 198 m.
_Source: syllabus Mathematics, Ch 11 "Areas Related to Circles", §11.2_
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