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1. |
In an epicyclic gear train, an arm carries two wheels A and B having 24 teeth and 30 teeth respectively. If the arm rotates at 100 rpm in the clockwise direction about the centre of the wheel. A which is fixed, then the speed of wheel on its own axis is _____ |
A. | 20 rpm anticlockwise |
B. | 25 rpm anticlockwise |
C. | 180 rpm clockwise |
D. | 225 rpm clockwise |
Answer» D. 225 rpm clockwise | |