SSC MTS 5 Aug 2019 Shift 3 Paper

Let the monthly income of A and B be 3x and 4x
And the monthly expenditures be 2y and 3y
Saving = income – expenditure
4000 = 4x – 3y ...1)
Similarly,
4000 = 3x – 2y ...2)
From 2 × (1) – 3 × (2)
8000 – 12000 = 8x – 9x
x = 4000
The income of B = 4x = 16000
∴ The income of B is 16000.
Short method,