4.1 Two aeroplanes leave two different airports, 900km apart from each other, at 9h00 in the

morning. They fly towards each other. The one flies at a speed of 250km/h and the other at

350km/h. At what time will they pass each other?

4.2 Find the amount of interest that a person will earn if he invests an amount of R8000 for 30

months, at an interest rate of 6% per annum, with the interest compounded semi-annually.

(Leave your answer as an expression in exponential form as you may not use a calculator.

morning. They fly towards each other. The one flies at a speed of 250km/h and the other at

350km/h. At what time will they pass each other?

4.2 Find the amount of interest that a person will earn if he invests an amount of R8000 for 30

months, at an interest rate of 6% per annum, with the interest compounded semi-annually.

(Leave your answer as an expression in exponential form as you may not use a calculator.