In how many ways can 5 balls be placed in 4 tins if any number of balls can be placed in any tin?

Step-by-step solution

5 balls can be placed in any of the 4 tins. Therefore, we can say that each balls can be paced in any of the 4 tins. Therefore, number of ways of arranging balls in all 4 tins = 4 × 4 × 4 × 4 × 4 = 4 5