The ratio of the number of muffins to the number of scones in a shop is 3 : 1. A muffin costs $1.90 and a scone costs $0.60. If all the muffins and scones are sold, a sum of $63 will be collected. How many muffins are there altogether?
| |
Muffins |
Scones |
Total |
| Number |
3 u |
1 u |
|
| Value |
$1.90 |
$0.60 |
|
| Total value |
5.7 u |
0.6 u |
$63 |
Amount collected if all the muffins are sold
= 3 u x 1.9
= 5.7 u
Amount collected if all the scones are sold
= 1 u x 0.6 u
= 0.6 u
Amount collected if all the muffins and scones are sold
= 5.7 u + 0.6 u
= 6.3 u
6.3 u = 63
1 u = 63 ÷ 6.3 = 10
Total number of muffins
= 3 u
= 3 x 10
= 30
Answer(s): 30
