A store owner has 80 less chikoos than pomegranates. After he sold 80% of the chikoos and 35% of the pomegranates, he is left with 65 less chikoos than pomegranates. What fraction of the fruits left were chikoos?

	Chikoos		Pomegranates
Comparing chikoos and pomegranates at first			80 less
Before	5x4 = 20 u	+ 80	20x1 = 20 u
Change	- 4x4 = - 16 u	- 64	- 7x1 = - 7 u
After	1x4 = 4 u	+ 16	13x1 = 13 u
Comparing chikoos  and pomegranates in the end	65 less

80% = ⁸⁰₁₀₀ = ⁴₅ 
80% x 80 = ⁴₅ x 80 = 64
80 - 64 = 16

35% = ³⁵₁₀₀ = ⁷₂₀ 

The number of chikoos is 65 less than the number of pomegranates in the end. So, if another 65 chikoos are added, the number of chikoos and pomegranates in the end will be the same.

4 u + 16 + 65 = 13 u
4 u + 81 = 13 u
13 u - 4 u = 81
9 u = 81

1 u = 81 ÷ 9 = 9

Number of chikoos left
= 4 u + 16
= 4 x 9 + 16
= 36 + 16
= 52

Total number of fruits left
= 4 u + 16 + 13 u
= 17 u + 16
= 17 x 9 + 16
= 153 + 16
= 169

^{Chikoos left}_{Total fruits left} = ⁵²₁₆₉ = ⁴₁₃

Answer(s): ⁴₁₃