A telegraph has 5 arms and each arm is capable of 4 distinct positons, including the position of rest. What is the total number of signals that can be made?

A telegraph post has 5 arms . Each arm is capable of four distinct positions including the position of rest the total number of signals that can be made is

The total number of signals that can be made with 7 different coloured flags is

The total number of signals than can be made with 5 different coloured flags is

A letter lock has 3 rings each containing 6 different letters. What is the maximum number of false trials that can be made before the lock is opened?

In a steamer there are stalls for 12 animals and there are cows, horses and calves (not less than 12 of each) ready to be shipped, the total number of ways in which the shipload can be made, is

In a steamer there are stalls for 12 animals and there are cows, horses and calves (not less than 12 of each) ready to be shipped, the total number of ways in which the shipload can be made, is

In a steamer there are stalls for 12 animals and there are cows, horses and calves (not less than 12 of each) ready to be shipped, the total number of ways in which the shipload can be made, is