Question

or 94 The The ratio of salaries of John and Jimmy is 3: 7. The ratio of their expenditures is 9:4. The ratio of salary and savings of John is 4:3. Find the ratio of their savings. a) 1:4 b) 27:80 c) 3:13 d) 2:7

Bank Exams

Maths

Solution

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Salary Sohn ( & operatorname{Jim} m_{y}=3 x ) & ( 7 x ) Expend. of John & Jimmy ( =9 y & 4 y ) ( frac{text { Salary of } J_{text {ohn }}}{text { Saving of John }}=frac{4}{3} Rightarrow frac{3 x}{3 x-9 y}=frac{4}{3} ) ( Rightarrow 9 x=12 x-36 y Rightarrow x=12 y ) Ratio of savings ( =frac{3 x-9 y}{7 x-4 y}=frac{36 y-9 y}{84 y-4 y}=frac{27}{80}=27: 80 ) Obtion 6 )