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Spatial Science Riddle

Spatial Science Riddle - 23 October

We have four gears with below features

=> Both Gear A and D has 60 teeth
=> Gear B has 40 teeth
=> Gear C has 20 teeth
=> Every two minutes, Gear B makes 25 full turns.

What is the relative speed of Gear A and Gear B?

For Solution: Click Here

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