A) Find the speed of B, correct to the nearest whole number. Let P be the port, A be the position of ship A after one hour, and B be the position of ship B after one hour. After one hour: • Ship A has

Here's the solution to question 13:

a) Find the speed of B, correct to the nearest whole number.

Let P be the port, A be the position of ship A after one hour, and B be the position of ship B after one hour.
After one hour:

• Ship A has traveled $10 \text{ km}$ (since its speed is $10 \text{ kmh}^{-1}$). So, $PA = 10 \text{ km}$.
• Ship B has traveled $v_B \text{ km}$ (where $v_B$ is its speed). So, $PB = v_B \text{ km}$.

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