Answers

2016-03-20T09:12:42+05:30
Complete revolution is equal to circumference of back wheel = 2 pi r = 2 x 3.14 x 1.4 = 8.8 m in one revolution.. In 500 revolutions = 500x8.8 = 4400m.. CIRCUMFERENCE of front wheel = 2 x 3.14 x 0.7 = 4.4m For 4400m, it will take 4400/4.4 = 1000 revolutions.
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2016-03-20T11:23:15+05:30
You con also solve it by unitary method 500 rev. 0.7 x 1.4 x = 500 × 1.4 /0.7 x = 1000 1000 revolutions
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