The ratio of the number of biscuits to the number of muffins in a kiosk is 4 : 1. A biscuit costs $1.90 and a muffin costs $0.90. If all the biscuits and muffins are sold, a sum of $340 will be collected. How many biscuits are there altogether?
| |
Biscuits |
Muffins |
Total |
| Number |
4 u |
1 u |
|
| Value |
$1.90 |
$0.90 |
|
| Total value |
7.6 u |
0.9 u |
$340 |
Amount collected if all the biscuits are sold
= 4 u x 1.9
= 7.6 u
Amount collected if all the muffins are sold
= 1 u x 0.9 u
= 0.9 u
Amount collected if all the biscuits and muffins are sold
= 7.6 u + 0.9 u
= 8.5 u
8.5 u = 340
1 u = 340 ÷ 8.5 = 40
Total number of biscuits
= 4 u
= 4 x 40
= 160
Answer(s): 160
