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primary 5 | Maths | Whole Numbers
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Celine
Anonymous

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

Pls help me with question, thank you so much!

Date Posted: 4 years ago
Views: 395
snell
Snell
4 years ago
(a)
4 erasers + 8 pens cost $5.20
36 erasers + 72 pens cost $5.20x9 = $46.80



17 erasers + 9 pens cost $10.85
136 erasers + 72 pens cost $10.85x8 = $86.80

hence,
36 erasers + 72 pens cost $46.80
136 erasers + 72 pens cost $86.80

136-36 erasers cost $86.80 - 46.80 100 erasers cost $40.00

(b)
ans: 100 erasers

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Tong Woei Horng
Tong Woei Horng's answer
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