A storybook costs $12 and a pen costs $3. Hakim buys 4 storybooks and 4 pens at NTUC FairPrice. The total cost can be expressed as 4 × ($12 + $3). Find the total cost.
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Worked Solution
Step 1: Work out the bracket first — the cost of one storybook plus one pen. $12 + $3 = $15.
Step 2: Hakim buys 4 of each set, so multiply the bracket by 4. 4 × $15 = $60.
Final answer: $60.
Answer: $60
Correct answer: $60
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