A school fees invoice of GH₵ 840 was paid in three installments of 2/7, 3/7, and the rest. What was the amount of the final installment?
Answer and explanation
Correct answer: A. GH₵ 240.00
- Step 1: Fraction paid in first two installments = 2/7 + 3/7 = 5/7. Step 2. Remaining fraction for final installment = 1 - 5/7 = 2/7. Amount = (2/7) 840 = 2 120 = GH₵ 240.00. Answer: GH₵ 240.00. Why not the others: GH₵ 120.00 is 1/7; GH₵ 360.00 is 3/7; GH₵ 480.00 is 4/7.
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