Calculate the transmission ratio of the planetary gear below when the sun gear 1 (N-24 teeth) is the input link, the planet carrier 2 is the output link and for ring gear 4 (N-68 teeth) is hold fixed. The number of teeth of the compound planet are known to be N-18 and N₁-25.

 Q:-  Calculate the transmission ratio of the planetary gear below when the sun gear 1 (N-24 teeth) is the input link, the planet carrier 2 is the output link and for ring gear 4 (N-68 teeth) is hold fixed. The number of teeth of the compound planet are known to be N-18 and N₁-25.

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