Jade baked cream, mocca and strawberry shortbreads. There were one-fifth as many strawberry shortbreads as mocca shortbreads and an equal number of strawberry shortbreads as cream shortbreads. The cost of each shortbread is given as shown.
1 strawberry shortbread: $1.60
1 mocca shortbread: $1.20
1 cream shortbread: $1.40
If she collected $279 from selling all the shortbreads, how many mocca shortbreads were there?
|
Strawberry |
Mocca |
Cream |
Ratio of shortbreads |
1 u |
5 u |
1 u |
Cost of 1 shortbreads |
$1.60 |
$1.20 |
$1.40 |
Total Value |
1.6 u |
6 u |
1.4 u |
Strawberry shortbreads : Mocca shortbreads : Cream shortbreads
1 : 5 : 1
Total amount earned from selling all the shortbreads
= 1.6 u + 6 u + 1.4 u
= 9 u
9 u = 279
1 u = 279 ÷ 9 = 31
Number of mocca shortbreads
= 5 u
= 5 x 31
= 155
Answer(s): 155