The average number of chikoos in Box L, Box M and Box N is 22 and it is 4 more than the average number of mangoes in the 3 boxes. ¹₆ of the mangoes are in Box L and the mangoes in Box L is 60% of the number of mangoes in Box M. If each box has the same number of fruits, what percentage of the fruits in Box N are chikoos?
Average number of mangoes
= 22 - 4
= 18

Total number of mangoes
= 3 x 18
= 54

Total number of chikoos
= 3 x 22 
= 66

Total number of fruits
= 54 + 66
= 120

Number of fruits in each box
= 120 ÷ 3
= 40

Mangoes in Box L	Mangoes in Box M	Mangoes in Box N	Total mangoes
1x3	5x3		6x3
3x1	5x1
3 u	5 u	10 u	18 u

60% = ⁶⁰₁₀₀ = ³₅

The number of mangoes in Box L is repeated.  Make the number of mangoes in Box L the same.  LCM of 1 and 3 is 3. 

Total number of mangoes
= 3 u + 5 u + 10 u
= 18 u

18 u = 54

1 u = 54 ÷ 18 = 3

Number of mangoes in Box N
= 10 u
= 10 x 3
= 30

Number of chikoos in Box N
= 40 - 30
= 10

Percentage of the fruits in Box N are chikoos
= ¹⁰₄₀ x 100%
= 25%

Answer(s): 25%