Question
The current ages of A, B, and C are in the ratio of
4:5:6. Additionally, D's current age is 10 years more than the average age of A, B, and C. The total of the current ages of A, B, C, and D is 134 years. What will be the sum of the ages of A, B, and D after 5 years?Solution
Age of A, B and C is = 4x , 5x and 6x 
ATQ 4x +5x + 6x + 5x + 10 = 134 20x = 124 X = 6.2 Ages of A ,B and D after 5 years A = 4x + 5 = 4 x 6.2 + 5 = 29.8 B = 5x + 5 = 5 x 6.2 + 5 = 36 D = 5x+ 10 + 5 = 5 x 6.2 + 10 + 5 = 46 Total = 29.8 + 36 + 46 = 111.8 years
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