The ratio of the number of macarons to the number of wafers in a supermarket is 6 : 1. A macaron costs $1.50 and a wafer costs $0.30. If all the macarons and wafers are sold, a sum of $372 will be collected. How many macarons are there altogether?
| |
Macarons |
Wafers |
Total |
| Number |
6 u |
1 u |
|
| Value |
$1.50 |
$0.30 |
|
| Total value |
9 u |
0.3 u |
$372 |
Amount collected if all the macarons are sold
= 6 u x 1.5
= 9 u
Amount collected if all the wafers are sold
= 1 u x 0.3 u
= 0.3 u
Amount collected if all the macarons and wafers are sold
= 9 u + 0.3 u
= 9.3 u
9.3 u = 372
1 u = 372 ÷ 9.3 = 40
Total number of macarons
= 6 u
= 6 x 40
= 240
Answer(s): 240
