Find the total number of ways in which six `'+'` and four `'-'` signs can be arranged in a line such that no two `'-'` signs occur together.

Explanation

To solve the problem of arranging six `'+'` signs and four `'-'` signs in such a way that no two `'-'` signs are adjacent, we can use the gap method. Here’s a step-by-step solution:

### Step 1: Identify the total signs
We have a total of 6 `'+'` signs and 4 `'-'` signs.

### Step 2: Arrange the `'+'` signs
First, we will arrange the 6 `'+'` signs. The arrangement of these signs creates gaps where we can place the `'-'` signs.

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