The ratio of the number of croissants to the number of biscuits in a kiosk is 2 : 1. A croissant costs $1.90 and a biscuit costs $0.80. If all the croissants and biscuits are sold, a sum of $184 will be collected. How many croissants are there altogether?
| |
Croissants |
Biscuits |
Total |
| Number |
2 u |
1 u |
|
| Value |
$1.90 |
$0.80 |
|
| Total value |
3.8 u |
0.8 u |
$184 |
Amount collected if all the croissants are sold
= 2 u x 1.9
= 3.8 u
Amount collected if all the biscuits are sold
= 1 u x 0.8 u
= 0.8 u
Amount collected if all the croissants and biscuits are sold
= 3.8 u + 0.8 u
= 4.6 u
4.6 u = 184
1 u = 184 ÷ 4.6 = 40
Total number of croissants
= 2 u
= 2 x 40
= 80
Answer(s): 80
