Derek Yeo's answer to Zee's Primary 5 Maths Whole Numbers Singapore question.
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Hi Zee, hope this helps.
You can draw model for both then you should get 11u + 45 and 15u + 75 for both cases.
After that you can solve for one 1unit which is the cost of a book.
You can draw model for both then you should get 11u + 45 and 15u + 75 for both cases.
After that you can solve for one 1unit which is the cost of a book.
Date Posted:
1 year ago
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