Irene bought 20 chikoos and 14 mangosteens on Thursday. Each day, she ate 3 chikoos and 1 mangosteen. She started eating her fruits on Friday.

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

	Chikoos	Mangosteens
Before	20	14
Change	- 3 u	- 1 u
After	20 - 3 u	14 - 1 u

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

The number of mangosteens and chikoos in the end is equal.

20 - 3 u = 14 - 1 u
3 u - 1 u = 20 - 14
2 u = 6

1 u = 6 ÷ 2 = 3

Irene ate for 3 days from Friday onwards.  At the end of Sunday, there would be an equal number of chikoos and mangosteens left.

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

Number of chikoos left on Monday
= 20 - (3 x 4)
= 20 - 12
= 8

Number of mangosteens left on Monday
= 14 - (1 x 4)
= 14 - 4
= 10

Number of mangosteens more than chikoos
= 10 - 8
= 2

Answer(s): (a) Sunday; (b) 2