Question

If 10 chocolate bars costs $30, find the cost of 4 chocolate bars.

• A. $3
• B. $12
• C. $10
• D. $15

Answer 1

The correct option is B $12

Total cost of chocolate bars = $\$$30
Number of chocolate bars = 10
Cost of 1 chocolate bar is:
Total cost ÷ Number of chocolate bars
= 30 ÷ 10
= $\$$3

Cost of 4 chocolate bars = 4 $\times$ cost of 1 chocolate bar
= 4 $\times$ 3
= $\$$12

$\therefore$ Cost of 4 chocolate bars is $\$$12.