CBSE Class 7 Mathematics Question 11 of 13

Finding Common Ground — Question 11

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11
Question
A dog is chasing a rabbit that has a head start of 150 feet. It jumps 9 feet every time the rabbit jumps 7 feet. In how many leaps does the dog catch up with the rabbit?
Answer

Here, distance gained per leap = Dog’s leap distance – Rabbit’s leap distance = 9 – 7 = 2 The dog needs to close a 150-foot head start. No. of leaps = \(\frac{\text { Head Start Distance }}{\text { Distance Gained Per Leap }}\) = \(\frac {150}{2}\) = 75 leaps