CAT 2019 Time, Speed and Distance Question (Medium)

Question

The wheels of bicycles A and B have radii 30 cm and 40 cm, respectively. While traveling a certain distance, each wheel of A required 5000 more revolutions than each wheel of B. If bicycle B traveled this distance in 45 minutes, then its speed, in km per hour, was

Accepted Answer

Step 1 Let the number of revolutions of bicycle B be . So, the number of revolutions of bicycle A Distance traveled number of revolutions circumference of the wheel Let s compute the circumferences - Bicycle A radius 30 cm circumference cm - Bicycle B radius 40 cm circumference cm So - Distance by A

CAT 2019

Quantitative

Time, Speed and Distance

Medium

The wheels of bicycles A and B have radii 30 cm and 40 cm, respectively. While traveling a certain distance, each wheel of A required 5000 more revolutions than each wheel of B. If bicycle B traveled this distance in 45 minutes, then its speed, in km per hour, was

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