In a supermarket, 65% of the number of vegetables sold were potatoes and the rest were onions. Each potato cost 50¢ and each onion cost 20¢ less than the cost of each potato. Given that $197.80 was collected from the sale of the vegetables,
- How many potatoes were sold?
- How much was collected from the sale of the onions only?
(a)
|
Potatoes |
Onions |
Number |
13 u |
7 u |
Value |
$0.50 |
$0.3 |
Total value |
6.5 u |
2.1 u |
65% =
65100 =
1320Cost of each onion
= 0.50 - 0.20
= $0.3
Total cost of the vegetables
= 6.5 u + 2.1 u
= 8.6 u
8.6 u = 197.80
1 u = 197.80 ÷ 8.6 = 23
Number of potatoes sold
= 13 u
= 13 x 23
= $299
(b)
Amount collected from the sale of onions
= 2.1 u
= 2.1 x 23
= $48.30
Answer(s): (a) 299; (b) $48.30