You are planning a family trip for 4 people. Based on the provided flight information, answer the following: a) Justify choosing British Airways. b) Calculate the total cost difference between British

British Airways offers a direct flight, which is often preferred for convenience, and its price (ZAR 8453) is not the most expensive option, making it a good balance between cost and convenience.

A possible reason for choosing British Airways is that it is a direct flight, avoiding layovers and reducing overall travel time.

1.1.2

• British Airways: ZAR 8453 per person
• KLM: ZAR 9281 per person

• Total cost for British Airways = $4 \times \text{ZAR } 8453 = \text{ZAR } 33812$
• Total cost for KLM = $4 \times \text{ZAR } 9281 = \text{ZAR } 37124$

The family would have to pay an additional $\boxed{\text{ZAR 3312}}$.

1.1.3

The plane departs at 13:30, and they must be at the airport 2 hours before departure.

Given distance = 130 km and average speed = 110 km/h.
Using the formula $\text{Time} = \frac{\text{Distance}}{\text{Speed}}$:

The latest time they have to leave home is $\boxed{\text{10:19}}$.

1.1.4
No, I would not advise the family to leave at the exact time calculated in 1.1.3. It is always advisable to leave earlier to account for unforeseen circumstances such as traffic delays, road accidents, or unexpected issues that might arise before departure.