Fanny bought 22 kiwis and 10 apples on Wednesday. Each day, she ate 5 kiwis and 1 apple. She started eating her fruits on Thursday.
- At the end of which day would there be an equal number of kiwis and apples left? Give your answer in the following format. (Eg Monday)
- How many more apples than kiwis were there on Sunday?
| |
Kiwis |
Apples |
| Before |
22 |
10 |
| Change |
- 5 u |
- 1 u |
| After |
22 - 5 u |
10 - 1 u |
(a)
Let the number of days be 1 u.
The number of apples and kiwis in the end is equal.
22 - 5 u = 10 - 1 u
5 u - 1 u = 22 - 10
4 u = 12
1 u = 12 ÷ 4 = 3
Fanny ate for 3 days from Thursday onwards. At the end of Saturday, there would be an equal number of kiwis and apples left.
(b)
Number of days from Thursday to Sunday = 4
Number of kiwis left on Sunday
= 22 - (5 x 4)
= 22 - 20
= 2
Number of apples left on Sunday
= 10 - (1 x 4)
= 10 - 4
= 6
Number of apples more than kiwis
= 6 - 2
= 4
Answer(s): (a) Saturday; (b) 4
