A fruit vendor ordered some fruits. 40% of the fruits he ordered were kiwis and the rest were grapefruits. Each kiwi cost $1.20 and each grapefruit cost 25% more than each kiwi. The vendor paid a total of $69.
- Find the total cost of the kiwis.
- How many grapefruits did he order?
(a)
|
Kiwis |
Grapefruits |
Numbers |
2 u |
3 u |
Price |
$1.20 |
$1.50 |
Total value |
2.4 u |
4.5 u |
40% =
40100 =
25Number of kiwis = 2 u
Number of grapefruits = 5 u - 2 u = 3 u
Price of each kiwi in percent = 100%
Price of each grapefruit in percent = 100% + 25% = 125%
Price of each grapefruit
= 1.20 x 125%
= 1.20 x
125100 = $1.50
2.4 u + 4.5 u = 69
6.9 u = 69
1 u = 69 ÷ 6.9 = 10
Cost of the kiwis
= 2 u x 1.20
= 2 x 10 x 1.20
= $24
(b)
Number of grapefruits ordered
= 3 u
= 3 x 10
= 30
Answer(s): (a) $24; (b) 30