Solution -
Let,
The monthly salary of shahid and kareena together is $28000.
The monthly salary of Shahid = x
The monthly salary of Kareena = 28000 - x
Increased salary of Shahid = 25%
= x + 25/100 × x
= 5x/4
= 1.25x
Increased Salary of Kareena = (28000 - X) + 12.5% × (28000 - X)
= (28000 - x) + 12.5% of (28000 - x)
= (28000 - x) + (12.5/100) × 28000 - 0.125x
= 28000 - x + 3500 - 0.125x
= 31500 - 1.125x
Now,
New salary of Kareena becomes 120% of new salary of Shahid.
New Salary of Kareena = 120% of 1.25X
31500 - 1.125x = (120/100) × 1.25x
31500 - 1.125x = 1.50x
1.50x + 1.125x = 31500
2.625x = 31500
x = 31500/2.625
x = 12000
Initial salary of Shahid = 12000
Therefore,
New salary of Shahid = 1.25x
= 1.25 × 12000
= 15000
Hence,
The correct answer is option A. $15000.
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