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primary 5 | Maths
| Fractions

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OMG please help me to get the answer I have so much homework to do!!!!!!

So cost of 15 drinks = 3/5 cost of 15 snacks

= 3/5 x 15

= 9 snacks

So cost of 12 snacks +15 drinks

= cost of 12 snacks + 9 snacks

= cost of 21 snacks

= $42

1 snack = $42 ÷ 21 = $2

1 drink = $2 x 3/5 = $1.20

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