The average number of apples in Container B, Container C and Container D is 25 and it is 5 more than the average number of mangoes in the 3 containers. ¹₅ of the mangoes are in Container B and the mangoes in Container B is 40% of the number of mangoes in Container C. If each container has the same number of fruits, what percentage of the fruits in Container D are apples?
Average number of mangoes
= 25 - 5
= 20

Total number of mangoes
= 3 x 20
= 60

Total number of apples
= 3 x 25 
= 75

Total number of fruits
= 60 + 75
= 135

Number of fruits in each container
= 135 ÷ 3
= 45

Mangoes in Container B	Mangoes in Container C	Mangoes in Container D	Total mangoes
1x2	4x2		5x2
2x1	5x1
2 u	5 u	3 u	10 u

40% = ⁴⁰₁₀₀ = ²₅

The number of mangoes in Container B is repeated.  Make the number of mangoes in Container B the same.  LCM of 1 and 2 is 2. 

Total number of mangoes
= 2 u + 5 u + 3 u
= 10 u

10 u = 60

1 u = 60 ÷ 10 = 6

Number of mangoes in Container D
= 3 u
= 3 x 6
= 18

Number of apples in Container D
= 45 - 18
= 27

Percentage of the fruits in Container D are apples
= ²⁷₄₅ x 100%
= 60%

Answer(s): 60%