Jane baked durian, apple and cream cookies. There were one-fifth as many cream cookies as apple cookies and an equal number of cream cookies as durian cookies. The cost of each cookie is given as shown.
1 cream cookie: $1.70
1 apple cookie: $1.20
1 durian cookie: $1.90
If she collected $240 from selling all the cookies, how many apple cookies were there?
|
Cream |
Apple |
Durian |
Ratio of cookies |
1 u |
5 u |
1 u |
Cost of 1 cookies |
$1.70 |
$1.20 |
$1.90 |
Total Value |
1.7 u |
6 u |
1.9 u |
Cream cookies : Apple cookies : Durian cookies
1 : 5 : 1
Total amount earned from selling all the cookies
= 1.7 u + 6 u + 1.9 u
= 9.6 u
9.6 u = 240
1 u = 240 ÷ 9.6 = 25
Number of apple cookies
= 5 u
= 5 x 25
= 125
Answer(s): 125