One year ago the ratio between A 39 s and B 39 s salary was 4 5 The ratio of their individual salari...........

Quantitative Aptitude ( CCS) Ratio, Proportion

One year ago, the ratio between A's and B's salary was 4:5. The ratio of their individual salaries of last year and present year are 3:5 and 2:3 respectively. If their total salaries for the present year is Rs 6800, the present salary of A is

Rs 1040

Rs 1600

Rs 2560

Rs 3200

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Explanation:

Ratio of A's last year and present year salary =3:5
Let salary be 3x and 5x respectively.
Ratio of B's in last year and present year salary =2:3
Let salary be 2y and 3y respectively.
Given that,
3x/2y=4/5
⇒ 15x=8y --------------- (i)
Also, given that, 5x+3y=6800 --------------- (ii)
From equation (i) and (ii), we get
y=1200andx=640.
A's present salary =5x=5×640= 3200.