Natalie bought 25 mangoes and 13 starfruits on Tuesday. Each day, she ate 4 mangoes and 1 starfruit. She started eating her fruits on Wednesday.

1. At the end of which day would there be an equal number of mangoes and starfruits left? Give your answer in the following format. (Eg Monday)
2. How many more starfruits than mangoes were there on Sunday?

	Mangoes	Starfruits
Before	25	13
Change	- 4 u	- 1 u
After	25 - 4 u	13 - 1 u

(a)
Let the number of days be 1 u.

The number of starfruits and mangoes in the end is equal.

25 - 4 u = 13 - 1 u
4 u - 1 u = 25 - 13
3 u = 12

1 u = 12 ÷ 3 = 4

Natalie ate for 4 days from Wednesday onwards.  At the end of Saturday, there would be an equal number of mangoes and starfruits left.

(b)
Number of days from Wednesday to Sunday = 5

Number of mangoes left on Sunday
= 25 - (4 x 5)
= 25 - 20
= 5

Number of starfruits left on Sunday
= 13 - (1 x 5)
= 13 - 5
= 8

Number of starfruits more than mangoes
= 8 - 5
= 3

Answer(s): (a) Saturday; (b) 3