Bryan bought some plums and kiwis in the ratio of 3 : 8 respectively. The cost of one plum was $1.60 more than the cost of one kiwi. He spent a total of $79 buying the plums and kiwis. The total cost of the kiwis was $1 more than the total cost of the plums. How much did one kiwi cost?
| |
Plums |
Kiwis |
Total |
| Number |
3 sets |
8 sets |
|
| Value |
$1.60 more |
|
|
| Total value |
|
$1 more |
$79 |
Total cost of plums
= (79 - 1) ÷ 2
= 78 ÷ 2
= $39
Total cost of kiwis
= 39 + 1
= $40
3 sets of plums = $39
1 set of plums = 39 ÷ 3 = $13
8 sets of kiwis = $40
1 set of kiwis = 40 ÷ 8 = $5
Difference in cost of 1 set of plums and 1 set of kiwis
= 13 - 5
= $8
Number of fruits in 1 set
= 8 ÷ 1.60
= 5
Cost of one kiwi
= 5 ÷ 5
= $1
Answer(s): $1
