The ratio of the number of muffins to the number of biscuits in a stall is 4 : 1. A muffin costs $1.10 and a biscuit costs $0.80. If all the muffins and biscuits are sold, a sum of $208 will be collected. How many muffins are there altogether?
|
Muffins |
Biscuits |
Total |
Number |
4 u |
1 u |
|
Value |
$1.10 |
$0.80 |
|
Total value |
4.4 u |
0.8 u |
$208 |
Amount collected if all the muffins are sold
= 4 u x 1.1
= 4.4 u
Amount collected if all the biscuits are sold
= 1 u x 0.8 u
= 0.8 u
Amount collected if all the muffins and biscuits are sold
= 4.4 u + 0.8 u
= 5.2 u
5.2 u = 208
1 u = 208 ÷ 5.2 = 40
Total number of muffins
= 4 u
= 4 x 40
= 160
Answer(s): 160