Jade baked blueberry, durian and coffee cupcakes. There were one-quarter as many coffee cupcakes as durian cupcakes and an equal number of coffee cupcakes as blueberry cupcakes. The cost of each cupcake is given as shown.
1 coffee cupcake: $1.10
1 durian cupcake: $1.20
1 blueberry cupcake: $1.60
If she collected $150 from selling all the cupcakes, how many durian cupcakes were there?
|
Coffee |
Durian |
Blueberry |
Ratio of cupcakes |
1 u |
4 u |
1 u |
Cost of 1 cupcakes |
$1.10 |
$1.20 |
$1.60 |
Total Value |
1.1 u |
4.8 u |
1.6 u |
Coffee cupcakes : Durian cupcakes : Blueberry cupcakes
1 : 4 : 1
Total amount earned from selling all the cupcakes
= 1.1 u + 4.8 u + 1.6 u
= 7.5 u
7.5 u = 150
1 u = 150 ÷ 7.5 = 20
Number of durian cupcakes
= 4 u
= 4 x 20
= 80
Answer(s): 80