The ratio of the number of puffs to the number of scones in a supermarket is 6 : 1. A puff costs $1.90 and a scone costs $0.30. If all the puffs and scones are sold, a sum of $234 will be collected. How many puffs are there altogether?
| |
Puffs |
Scones |
Total |
| Number |
6 u |
1 u |
|
| Value |
$1.90 |
$0.30 |
|
| Total value |
11.4 u |
0.3 u |
$234 |
Amount collected if all the puffs are sold
= 6 u x 1.9
= 11.4 u
Amount collected if all the scones are sold
= 1 u x 0.3 u
= 0.3 u
Amount collected if all the puffs and scones are sold
= 11.4 u + 0.3 u
= 11.7 u
11.7 u = 234
1 u = 234 ÷ 11.7 = 20
Total number of puffs
= 6 u
= 6 x 20
= 120
Answer(s): 120
