Vanessa baked pandan, strawberry and coffee biscuits. There were one-fifth as many coffee biscuits as strawberry biscuits and an equal number of coffee biscuits as pandan biscuits. The cost of each biscuit is given as shown.
1 coffee biscuit: $1.80
1 strawberry biscuit: $1.80
1 pandan biscuit: $1.20
If she collected $288 from selling all the biscuits, how many strawberry biscuits were there?
|
Coffee |
Strawberry |
Pandan |
Ratio of biscuits |
1 u |
5 u |
1 u |
Cost of 1 biscuits |
$1.80 |
$1.80 |
$1.20 |
Total Value |
1.8 u |
9 u |
1.2 u |
Coffee biscuits : Strawberry biscuits : Pandan biscuits
1 : 5 : 1
Total amount earned from selling all the biscuits
= 1.8 u + 9 u + 1.2 u
= 12 u
12 u = 288
1 u = 288 ÷ 12 = 24
Number of strawberry biscuits
= 5 u
= 5 x 24
= 120
Answer(s): 120