The ratio of the number of puffs to the number of scones in a stall is 5 : 1. A puff costs $1.90 and a scone costs $0.70. If all the puffs and scones are sold, a sum of $204 will be collected. How many puffs are there altogether?
| |
Puffs |
Scones |
Total |
| Number |
5 u |
1 u |
|
| Value |
$1.90 |
$0.70 |
|
| Total value |
9.5 u |
0.7 u |
$204 |
Amount collected if all the puffs are sold
= 5 u x 1.9
= 9.5 u
Amount collected if all the scones are sold
= 1 u x 0.7 u
= 0.7 u
Amount collected if all the puffs and scones are sold
= 9.5 u + 0.7 u
= 10.2 u
10.2 u = 204
1 u = 204 ÷ 10.2 = 20
Total number of puffs
= 5 u
= 5 x 20
= 100
Answer(s): 100
