Fanny baked blueberry, pandan and coffee cookies. There were one-third as many coffee cookies as pandan cookies and an equal number of coffee cookies as blueberry cookies. The cost of each cookie is given as shown.
1 coffee cookie: $1.80
1 pandan cookie: $1.90
1 blueberry cookie: $1.90
If she collected $141 from selling all the cookies, how many pandan cookies were there?
|
Coffee |
Pandan |
Blueberry |
Ratio of cookies |
1 u |
3 u |
1 u |
Cost of 1 cookies |
$1.80 |
$1.90 |
$1.90 |
Total Value |
1.8 u |
5.7 u |
1.9 u |
Coffee cookies : Pandan cookies : Blueberry cookies
1 : 3 : 1
Total amount earned from selling all the cookies
= 1.8 u + 5.7 u + 1.9 u
= 9.4 u
9.4 u = 141
1 u = 141 ÷ 9.4 = 15
Number of pandan cookies
= 3 u
= 3 x 15
= 45
Answer(s): 45