BECE Mathematics 2022 Paper

NOTE: since the duration was given in years, you have to convert the years to months before multiplying the cost per month
There are 12 months in a year
Half a year is 6 months
Hence 11∕2 years =12 months +6 months =18 months
Method I
Using proportionality.
Per month means every (1) month.
If 1 month =GH‌₵‌9
18 months =‌

‌ GH₵ ‌9×18‌ months ‌

1‌ month ‌

= GH₵ 9×18= GH₵ 162.00
Method II
Total Amount paid = Total Months × Cost per month
Total amount paid =18 months × GH₵ 9.00 per month
Total amount paid =18×9=GH‌₵‌16‌162.00