In a supermarket, 75% of the number of vegetables sold were potatoes and the rest were yams. Each potato cost 25¢ and each yam cost 10¢ less than the cost of each potato. Given that $199.80 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 |
3 u |
1 u |
Value |
$0.25 |
$0.15 |
Total value |
0.75 u |
0.15 u |
75% =
75100 =
34Cost of each yam
= 0.25 - 0.10
= $0.15
Total cost of the vegetables
= 0.75 u + 0.15 u
= 0.9 u
0.9 u = 199.80
1 u = 199.80 ÷ 0.9 = 222
Number of potatoes sold
= 3 u
= 3 x 222
= $666
(b)
Amount collected from the sale of yams
= 0.15 u
= 0.15 x 222
= $33.30
Answer(s): (a) 666; (b) $33.30