Wendy bought 27 passion fruits and 18 starfruits on Thursday. Each day, she ate 4 passion fruits and 1 starfruit. She started eating her fruits on Friday.

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

	Passion Fruits	Starfruits
Before	27	18
Change	- 4 u	- 1 u
After	27 - 4 u	18 - 1 u

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

The number of starfruits and passion fruits in the end is equal.

27 - 4 u = 18 - 1 u
4 u - 1 u = 27 - 18
3 u = 9

1 u = 9 ÷ 3 = 3

Wendy ate for 3 days from Friday onwards.  At the end of Sunday, there would be an equal number of passion fruits and starfruits left.

(b)
Number of days from Friday to Monday = 4

Number of passion fruits left on Monday
= 27 - (4 x 4)
= 27 - 16
= 11

Number of starfruits left on Monday
= 18 - (1 x 4)
= 18 - 4
= 14

Number of starfruits more than passion fruits
= 14 - 11
= 3

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