Nicole bought 27 oranges and 15 kiwis on Sunday. Each day, she ate 4 oranges and 1 kiwi. She started eating her fruits on Monday.
- At the end of which day would there be an equal number of oranges and kiwis left? Give your answer in the following format. (Eg Monday)
- How many more kiwis than oranges were there on Friday?
| |
Oranges |
Kiwis |
| Before |
27 |
15 |
| Change |
- 4 u |
- 1 u |
| After |
27 - 4 u |
15 - 1 u |
(a)
Let the number of days be 1 u.
The number of kiwis and oranges in the end is equal.
27 - 4 u = 15 - 1 u
4 u - 1 u = 27 - 15
3 u = 12
1 u = 12 ÷ 3 = 4
Nicole ate for 4 days from Monday onwards. At the end of Thursday, there would be an equal number of oranges and kiwis left.
(b)
Number of days from Monday to Friday = 5
Number of oranges left on Friday
= 27 - (4 x 5)
= 27 - 20
= 7
Number of kiwis left on Friday
= 15 - (1 x 5)
= 15 - 5
= 10
Number of kiwis more than oranges
= 10 - 7
= 3
Answer(s): (a) Thursday; (b) 3
