The ratio of the number of croissants to the number of biscuits in a supermarket is 2 : 1. A croissant costs $1.30 and a biscuit costs $0.60. If all the croissants and biscuits are sold, a sum of $96 will be collected. How many croissants are there altogether?
| |
Croissants |
Biscuits |
Total |
| Number |
2 u |
1 u |
|
| Value |
$1.30 |
$0.60 |
|
| Total value |
2.6 u |
0.6 u |
$96 |
Amount collected if all the croissants are sold
= 2 u x 1.3
= 2.6 u
Amount collected if all the biscuits are sold
= 1 u x 0.6 u
= 0.6 u
Amount collected if all the croissants and biscuits are sold
= 2.6 u + 0.6 u
= 3.2 u
3.2 u = 96
1 u = 96 ÷ 3.2 = 30
Total number of croissants
= 2 u
= 2 x 30
= 60
Answer(s): 60
