Min bought 28 kiwis and 13 lemons on Tuesday. Each day, she ate 4 kiwis and 1 lemon. She started eating her fruits on Wednesday.
- At the end of which day would there be an equal number of kiwis and lemons left? Give your answer in the following format. (Eg Monday)
- How many more lemons than kiwis were there on Monday?
| |
Kiwis |
Lemons |
| Before |
28 |
13 |
| Change |
- 4 u |
- 1 u |
| After |
28 - 4 u |
13 - 1 u |
(a)
Let the number of days be 1 u.
The number of lemons and kiwis in the end is equal.
28 - 4 u = 13 - 1 u
4 u - 1 u = 28 - 13
3 u = 15
1 u = 15 ÷ 3 = 5
Min ate for 5 days from Wednesday onwards. At the end of Sunday, there would be an equal number of kiwis and lemons left.
(b)
Number of days from Wednesday to Monday = 6
Number of kiwis left on Monday
= 28 - (4 x 6)
= 28 - 24
= 4
Number of lemons left on Monday
= 13 - (1 x 6)
= 13 - 6
= 7
Number of lemons more than kiwis
= 7 - 4
= 3
Answer(s): (a) Sunday; (b) 3
