A child has four pocket and three marbles. In how many ways can the child put the marbles in its pocket?

Explanation

To solve the problem of how many ways a child can put 3 marbles into 4 pockets, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Variables**:
- Let the pockets be denoted as P1, P2, P3, and P4.
- Let the marbles be denoted as M1, M2, and M3.

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