In a supermarket, 70% of the number of vegetables sold were potatoes and the rest were yams. Each potato cost 50¢ and each yam cost 20¢ less than the cost of each potato. Given that $268.40 was collected from the sale of the vegetables,
- How many potatoes were sold?
- How much was collected from the sale of the yams only?
(a)
|
Potatoes |
Yams |
Number |
7 u |
3 u |
Value |
$0.50 |
$0.3 |
Total value |
3.5 u |
0.9 u |
70% =
70100 =
710Cost of each yam
= 0.50 - 0.20
= $0.3
Total cost of the vegetables
= 3.5 u + 0.9 u
= 4.4 u
4.4 u = 268.40
1 u = 268.40 ÷ 4.4 = 61
Number of potatoes sold
= 7 u
= 7 x 61
= $427
(b)
Amount collected from the sale of yams
= 0.9 u
= 0.9 x 61
= $54.90
Answer(s): (a) 427; (b) $54.90