The total annual expenditure is calculated by adding the phone costs of K4.50 and the clothes costs of K1200, resulting in a total of K1204.50. Thus, the total annual expenditure is K1204.50.
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To find the total annual expenditure, let's break down the costs given in the question.
Phone Costs:
The phone costs K3 every 8 months. To find the annual cost, calculate how much it costs for 12 months (1 year).
Since 12 months is 1.5 times 8 months, the phone cost for 12 months is: 3 × 1.5 = K 4.5
Clothes Costs:
The clothes cost K100 per month. For 12 months, the total cost is: 100 × 12 = K 1200
Total Annual Expenditure:
Add the phone and clothes costs together to find the total: K 4.5 + K 1200 = K 1204.5
Therefore, the total annual expenditure is K1204.5 .