St Nicholas 2025 P6 Maths Prelim — Paper 2 Q14b Solution

Paper 2 · Q14b · 1 mark · Percentage

Question

For the book sale, (b) Find the original price of the first book.

Answer: $12.50

The first book was bought at 10% discount, so \$11.25 is 90% of the original price. $10\% = 11.25 \div 9 = \$1.25$, so original price $= 1.25 \times 10 = \$12.50$.

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