Paper 2 · Number, percentages, interest
Calculate the simple interest earned on $1200 invested at a rate of 15% per annum for 6 months.
Model answer
$90
Also accepted: 90, $90,00
Explanation: I = (1200×15×6)/(100×12) = $90.
Derived from ZIMSEC Mathematics Paper 2, June 1999, Q1
