The ratio of the number of croissants to the number of wafers in a kiosk is 6 : 1. A croissant costs $1.80 and a wafer costs $0.60. If all the croissants and wafers are sold, a sum of $456 will be collected. How many croissants are there altogether?
| |
Croissants |
Wafers |
Total |
| Number |
6 u |
1 u |
|
| Value |
$1.80 |
$0.60 |
|
| Total value |
10.8 u |
0.6 u |
$456 |
Amount collected if all the croissants are sold
= 6 u x 1.8
= 10.8 u
Amount collected if all the wafers are sold
= 1 u x 0.6 u
= 0.6 u
Amount collected if all the croissants and wafers are sold
= 10.8 u + 0.6 u
= 11.4 u
11.4 u = 456
1 u = 456 ÷ 11.4 = 40
Total number of croissants
= 6 u
= 6 x 40
= 240
Answer(s): 240
