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Question
primary 6 | Maths
| Measurement
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Please help . Tks
$59 - $23 = $36
We can treat it as the bag's cost went down by $36 while the total cost of the books went up by $36
$23 - $20 = $3
Each book went up by $3.
Number of books
= $36 ÷ 3
= 12