Zoe baked cream, strawberry and coffee muffins. There were one-third as many coffee muffins as strawberry muffins and an equal number of coffee muffins as cream muffins. The cost of each muffin is given as shown.
1 coffee muffin: $1.80
1 strawberry muffin: $1.70
1 cream muffin: $1.20
If she collected $243 from selling all the muffins, how many strawberry muffins were there?
|
Coffee |
Strawberry |
Cream |
Ratio of muffins |
1 u |
3 u |
1 u |
Cost of 1 muffins |
$1.80 |
$1.70 |
$1.20 |
Total Value |
1.8 u |
5.1 u |
1.2 u |
Coffee muffins : Strawberry muffins : Cream muffins
1 : 3 : 1
Total amount earned from selling all the muffins
= 1.8 u + 5.1 u + 1.2 u
= 8.1 u
8.1 u = 243
1 u = 243 ÷ 8.1 = 30
Number of strawberry muffins
= 3 u
= 3 x 30
= 90
Answer(s): 90