The ratio of the number of croissants to the number of cupcakes in a kiosk is 4 : 1. A croissant costs $1.60 and a cupcake costs $0.50. If all the croissants and cupcakes are sold, a sum of $69 will be collected. How many croissants are there altogether?
|
Croissants |
Cupcakes |
Total |
Number |
4 u |
1 u |
|
Value |
$1.60 |
$0.50 |
|
Total value |
6.4 u |
0.5 u |
$69 |
Amount collected if all the croissants are sold
= 4 u x 1.6
= 6.4 u
Amount collected if all the cupcakes are sold
= 1 u x 0.5 u
= 0.5 u
Amount collected if all the croissants and cupcakes are sold
= 6.4 u + 0.5 u
= 6.9 u
6.9 u = 69
1 u = 69 ÷ 6.9 = 10
Total number of croissants
= 4 u
= 4 x 10
= 40
Answer(s): 40