HOTS Mathematics Primary 6 Pie Charts

A pie chart shows Auntie Lim's hawker stall monthly income of $8,000. In the following month, income from Drinks doubles while all other categories remain the same. What percentage of the new total monthly income comes from Drinks?

A 40%
B 50%
C 25%
D 33⅓%
Show Worked Solution

Worked Solution

Step 1: Find current Drinks income. 25% of $8 000 = $2 000 Step 2: Find new Drinks income (doubles). $2 000 × 2 = $4 000 Step 3: Find the new total income. All other categories stay the same: $8 000 − $2 000 = $6 000 unchanged. New total = $6 000 + $4 000 = $10 000 Step 4: Calculate Drinks as a percentage of new total. $4 000 ÷ $10 000 × 100% = 40% Drinks make up 40% of the new total monthly income.

Correct answer: 40%

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