Dawn's answer to Toto's Primary 5 Maths Whole Numbers Singapore question.
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Price of 1 key chain = $1.20 + $1.80 = $3
Price of 1 pen and 1 key chain = $1.20 + $3 = $4.20
Number of pens she bought = Number of sets of pen and key chain = $151.20 / $4.20 = 36
Price of 1 pen and 1 key chain = $1.20 + $3 = $4.20
Number of pens she bought = Number of sets of pen and key chain = $151.20 / $4.20 = 36
Date Posted:
5 years ago
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