In a supermarket, 70% of the number of vegetables sold were yams and the rest were onions. Each yam cost 25¢ and each onion cost 10¢ less than the cost of each yam. Given that $180.40 was collected from the sale of the vegetables,
- How many yams were sold?
- How much was collected from the sale of the onions only?
(a)
|
Yams |
Onions |
Number |
7 u |
3 u |
Value |
$0.25 |
$0.15 |
Total value |
1.75 u |
0.45 u |
70% =
70100 =
710Cost of each onion
= 0.25 - 0.10
= $0.15
Total cost of the vegetables
= 1.75 u + 0.45 u
= 2.2 u
2.2 u = 180.40
1 u = 180.40 ÷ 2.2 = 82
Number of yams sold
= 7 u
= 7 x 82
= $574
(b)
Amount collected from the sale of onions
= 0.45 u
= 0.45 x 82
= $36.90
Answer(s): (a) 574; (b) $36.90