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