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ATQ,
Let present age of M and N is ‘x’ and ‘y’ years respectively.
So, x + y = 2 × 26 = 52………………..(1)
And, y + 12 = 2 × (x – 4)
y + 12 = 2x – 8
2x – y = 20
From equation (1) we get
2x – 52 + x = 20
3x = 72
x = 24
y = 52 – 24 = 28
Desired ratio = 24:28 = 6:7
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