James father present age = x
James age = 2/7 x
James brother age = 2x/7 + 3
x = 42
=> 2x/7 = 12 yrs
Quantity I= Let 3 year ago the age of A and B be 3x and 4x respectively
Then ATQ 3x+5+4x+5=45 X=5
Hence present age of A=3x+3=18year
Quantity II== Let 5 year ago the age of p and q be 3x and 4x respectively
Then ATQ
3x+11=4x+5
X=6 Hence present age of P=3x+5=23
Hence Quantity I < Quantity II
Let the present ages of A & B to be ?a? & ?b? respectively.
Hence, 2 years ago, their ages must have been (a-2) & (b-2) respectively.
Average of their ages at that time = 26
Hence,
[(a-2)+(b-2)]/2 = 26
(a-2)+(b-2) = 52
a+b = 56
Age of A, 5 year hence = 40 years
Hence, (a+5) = 40
a = 35 years
Hence, b = 56 - 35 = 21 years
B = (C-5)
Hence, C = 21+5 = 26 years
Age difference between A & C = 35 - 26 = 9 years.
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