A telegraph has 6 arms and each arm is capable of (x-1) distinct positions, including the position of rest. the total no of signals that can made is ?

Hello student,
Please find the answer to your question below
A telegraph post has 6 arms
So, here each arm is 5 distinct positions
Then, from each arm four distinct position can be chosen
=5X5X5X5X5X5=5⁶
= 15625
But, here the rest of distinct positions is
= 5⁶ - 1
= 15625- 1
= 15624