![An epicyclic gear train is shown in the figure below. The number of teeth on the gears A, B and D are 20, 30 and 20, respectively](https://www.gkseries.com/blog/wp-content/uploads/2023/10/An-epicyclic-gear-train-is-shown-in-the-figure-below.-The-number-of-teeth-on-the-gears-A-B-and-D-are-20-30-and-20-respectively.jpg)
Q. An epicyclic gear train is shown in the figure below. The number of teeth on the gears A, B and D are 20, 30 and 20, respectively. Gear C has 80 teeth on the inner surface and 100 teeth on the outer surface. If the carrier arm AB is fixed and the sun gear A rotates at 300 rpm in the clockwise direction, then the rpm of D in the clockwise direction is
![](https://www.gkseries.com/blog/wp-content/uploads/2023/10/image-43.png)
(A) 240 (B) -240 (C) 375 (D) -375
Ans: 375