Question : The radius of a wheel is 3.5 cm. What is the distance (in cm.) traveled by the wheel in 20 revolutions?
Option 1: 220
Option 2: 440
Option 3: 880
Option 4: 1320
Answer (1)
24th Jan, 2024
Correct Answer: 440
Solution :
Circumference of a wheel = $2 \pi r$ = $\frac{2 × 22 × 3.5}{7}$ = 22 cm
Distance travelled in 1 revolution = 22 cm
Distance travelled in 20 revolutions = 20 × 22 = 440 cm
Hence, the correct answer is 440.
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