Q: A man is riding a bike with front and back wheel circumference of 40 inches and 70 inches respectively. If the man rides the bike on a straight road without slippage, how many inches will the man have travelled when the front wheel has made 15 revolutions more than the back wheel?
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Answer : 3. "1400"
Answer: C) 1400 Explanation: Given the ratio of the circumference of front wheel is 40 inches and back wheel is 70 inches Distance covered = Circumference of the wheel × No. of Revolutions made by the wheel If n is the number of revolutions made by back wheel, the number of revolutions made by front wheel is n+15 Distance covered by both the wheels is the same 40*(n+3)=70n n=20 Front wheel : Back Wheel Circumference 40 : 70 Revolutions 35 : 20 Distance covered : 40×35 = 70×20 = 1400 inches.