3 votes 3 votes Ravi's salary before he got an increment was 20% of total income of of his family.His increment was one fourth of his salary after increment.What percentage of total income of his family is his new salary Quantitative Aptitude percentage + – Uma Maheswari asked Dec 26, 2017 Uma Maheswari 286 points 3.8k views answer comment Share See all 0 reply Please log in or register to add a comment.
Best answer 3 votes 3 votes Let total family income be : $x$ Ravi`s increment be : $y$ Then Ravi`s income before increment : $0.2x$ $Increment \ value : = $ $\frac{1}{4} \times (0.2x+y)=y \\ y= \frac{0.2x}{3} $ $New \ salary = \frac{0.2x}{3}+0.2x = \frac{0.8x}{3}$ New salary in terms of family income = $\LARGE \frac{\frac{0.8x}{3}}{x+\frac{0.2x}{3}} $$\times 100=25\%$ Note : Ravi is also part of family therefore increment in Ravi`s salary will also increase his family income. saxena0612 answered Dec 26, 2017 • selected Dec 28, 2017 by Arjun saxena0612 950 points comment Share See all 0 reply Please log in or register to add a comment.