In a supermarket, 75% of the number of vegetables sold were sweet potatoes and the rest were radishes. Each sweet potato cost 25¢ and each radish cost 10¢ less than the cost of each sweet potato. Given that $219.60 was collected from the sale of the vegetables,
- How many sweet potatoes were sold?
- How much was collected from the sale of the radishes only?
(a)
|
Sweet Potatoes |
Radishes |
Number |
3 u |
1 u |
Value |
$0.25 |
$0.15 |
Total value |
0.75 u |
0.15 u |
75% =
75100 =
34Cost of each radish
= 0.25 - 0.10
= $0.15
Total cost of the vegetables
= 0.75 u + 0.15 u
= 0.9 u
0.9 u = 219.60
1 u = 219.60 ÷ 0.9 = 244
Number of sweet potatoes sold
= 3 u
= 3 x 244
= $732
(b)
Amount collected from the sale of radishes
= 0.15 u
= 0.15 x 244
= $36.60
Answer(s): (a) 732; (b) $36.60