A store owner has 100 more chikoos than passion fruits. After he sold 80% of the chikoos and 35% of the passion fruits, he is left with 16 less chikoos than passion fruits. What fraction of the fruits left were passion fruits?

	Chikoos		Passion fruits
Comparing chikoos and passion fruits at first	100 more
Before	5x4 = 20 u	+ 100	20x1 = 20 u
Change	- 4x4 = - 16 u	- 80	- 7x1 = - 7 u
After	1x4 = 4 u	+ 20	13x1 = 13 u
Comparing chikoos  and passion fruits in the end	16 less

80% = ⁸⁰₁₀₀ = ⁴₅ 
80% x 100 = ⁴₅ x 100 = 80
100 - 80 = 20

35% = ³⁵₁₀₀ = ⁷₂₀ 

The number of chikoos is 16 less than the number of passion fruits in the end. So, if another 16 chikoos are added, the number of chikoos and passion fruits in the end will be the same.

4 u + 20 + 16 = 13 u
4 u + 36 = 13 u
13 u - 4 u = 36
9 u = 36

1 u = 36 ÷ 9 = 4

Number of passion fruits left
= 13 u
= 13 x 4
= 52

Total number of fruits left
= 4 u + 20 + 13 u
= 17 u + 20
= 17 x 4 + 20
= 68 + 20
= 88

^{Passion fruits left}_{Total fruits left} = ⁵²₈₈ = ¹³₂₂

Answer(s): ¹³₂₂