The ratio of the number of croissants to the number of wafers in a kiosk is 6 : 1. A croissant costs $1.10 and a wafer costs $0.70. If all the croissants and wafers are sold, a sum of $146 will be collected. How many croissants are there altogether?
| |
Croissants |
Wafers |
Total |
| Number |
6 u |
1 u |
|
| Value |
$1.10 |
$0.70 |
|
| Total value |
6.6 u |
0.7 u |
$146 |
Amount collected if all the croissants are sold
= 6 u x 1.1
= 6.6 u
Amount collected if all the wafers are sold
= 1 u x 0.7 u
= 0.7 u
Amount collected if all the croissants and wafers are sold
= 6.6 u + 0.7 u
= 7.3 u
7.3 u = 146
1 u = 146 ÷ 7.3 = 20
Total number of croissants
= 6 u
= 6 x 20
= 120
Answer(s): 120
