The ratio of the number of cookies to the number of muffins in a shop is 6 : 1. A cookie costs $1.50 and a muffin costs $0.40. If all the cookies and muffins are sold, a sum of $376 will be collected. How many cookies are there altogether?
| |
Cookies |
Muffins |
Total |
| Number |
6 u |
1 u |
|
| Value |
$1.50 |
$0.40 |
|
| Total value |
9 u |
0.4 u |
$376 |
Amount collected if all the cookies are sold
= 6 u x 1.5
= 9 u
Amount collected if all the muffins are sold
= 1 u x 0.4 u
= 0.4 u
Amount collected if all the cookies and muffins are sold
= 9 u + 0.4 u
= 9.4 u
9.4 u = 376
1 u = 376 ÷ 9.4 = 40
Total number of cookies
= 6 u
= 6 x 40
= 240
Answer(s): 240
