Victoria baked pandan, coffee and mocca shortbreads. There were one-quarter as many mocca shortbreads as coffee shortbreads and an equal number of mocca shortbreads as pandan shortbreads. The cost of each shortbread is given as shown.
1 mocca shortbread: $1.40
1 coffee shortbread: $1.10
1 pandan shortbread: $1.50
If she collected $146 from selling all the shortbreads, how many coffee shortbreads were there?
|
Mocca |
Coffee |
Pandan |
Ratio of shortbreads |
1 u |
4 u |
1 u |
Cost of 1 shortbreads |
$1.40 |
$1.10 |
$1.50 |
Total Value |
1.4 u |
4.4 u |
1.5 u |
Mocca shortbreads : Coffee shortbreads : Pandan shortbreads
1 : 4 : 1
Total amount earned from selling all the shortbreads
= 1.4 u + 4.4 u + 1.5 u
= 7.3 u
7.3 u = 146
1 u = 146 ÷ 7.3 = 20
Number of coffee shortbreads
= 4 u
= 4 x 20
= 80
Answer(s): 80