A fruit vendor ordered some fruits. 25% of the fruits he ordered were chikoos and the rest were grapefruits. Each chikoo cost $2.80 and each grapefruit cost 25% more than each chikoo. The vendor paid a total of $399.
- Find the total cost of the chikoos.
- How many grapefruits did he order?
(a)
|
Chikoos |
Grapefruits |
Numbers |
1 u |
3 u |
Price |
$2.80 |
$3.50 |
Total value |
2.8 u |
10.5 u |
25% =
25100 =
14Number of chikoos = 1 u
Number of grapefruits = 4 u - 1 u = 3 u
Price of each chikoo in percent = 100%
Price of each grapefruit in percent = 100% + 25% = 125%
Price of each grapefruit
= 2.80 x 125%
= 2.80 x
125100 = $3.50
2.8 u + 10.5 u = 399
13.3 u = 399
1 u = 399 ÷ 13.3 = 30
Cost of the chikoos
= 1 u x 2.80
= 1 x 30 x 2.80
= $84
(b)
Number of grapefruits ordered
= 3 u
= 3 x 30
= 90
Answer(s): (a) $84; (b) 90