The ratio of the number of muffins to the number of scones in a kiosk is 3 : 1. A muffin costs $1.80 and a scone costs $0.80. If all the muffins and scones are sold, a sum of $186 will be collected. How many muffins are there altogether?
|
Muffins |
Scones |
Total |
Number |
3 u |
1 u |
|
Value |
$1.80 |
$0.80 |
|
Total value |
5.4 u |
0.8 u |
$186 |
Amount collected if all the muffins are sold
= 3 u x 1.8
= 5.4 u
Amount collected if all the scones are sold
= 1 u x 0.8 u
= 0.8 u
Amount collected if all the muffins and scones are sold
= 5.4 u + 0.8 u
= 6.2 u
6.2 u = 186
1 u = 186 ÷ 6.2 = 30
Total number of muffins
= 3 u
= 3 x 30
= 90
Answer(s): 90