The ratio of the number of wafers to the number of cupcakes in a stall is 5 : 1. A wafer costs $1.30 and a cupcake costs $0.60. If all the wafers and cupcakes are sold, a sum of $284 will be collected. How many wafers are there altogether?
|
Wafers |
Cupcakes |
Total |
Number |
5 u |
1 u |
|
Value |
$1.30 |
$0.60 |
|
Total value |
6.5 u |
0.6 u |
$284 |
Amount collected if all the wafers are sold
= 5 u x 1.3
= 6.5 u
Amount collected if all the cupcakes are sold
= 1 u x 0.6 u
= 0.6 u
Amount collected if all the wafers and cupcakes are sold
= 6.5 u + 0.6 u
= 7.1 u
7.1 u = 284
1 u = 284 ÷ 7.1 = 40
Total number of wafers
= 5 u
= 5 x 40
= 200
Answer(s): 200