A person has undertaken a construction job. The probabilities are `0.80` that there will be a strike, `0.70` that the construction job will be completed on time if there is no strike, and `0.4` that the construction job will be completed on time if there is a strike. Determine the probability that the construction job will be completed on time.

Explanation

To determine the probability that the construction job will be completed on time, we will use the law of total probability. Here are the steps:

### Step 1: Define the Events
Let:
- \( A \): the event that the construction job will be completed on time.
- \( B \): the event that there will be a strike.

### Step 2: Identify Given Probabilities
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