Diana baked cheese, pandan and cream shortbreads. There were one-third as many cream shortbreads as pandan shortbreads and an equal number of cream shortbreads as cheese shortbreads. The cost of each shortbread is given as shown.
1 cream shortbread: $1.10
1 pandan shortbread: $1.40
1 cheese shortbread: $1.70
If she collected $175 from selling all the shortbreads, how many pandan shortbreads were there?
|
Cream |
Pandan |
Cheese |
Ratio of shortbreads |
1 u |
3 u |
1 u |
Cost of 1 shortbreads |
$1.10 |
$1.40 |
$1.70 |
Total Value |
1.1 u |
4.2 u |
1.7 u |
Cream shortbreads : Pandan shortbreads : Cheese shortbreads
1 : 3 : 1
Total amount earned from selling all the shortbreads
= 1.1 u + 4.2 u + 1.7 u
= 7 u
7 u = 175
1 u = 175 ÷ 7 = 25
Number of pandan shortbreads
= 3 u
= 3 x 25
= 75
Answer(s): 75