Ratio and Proportions
Ratio & Proportion — Aptitude Questions Ratio & Proportion — Aptitude Questions Q1 The monthly emoluments of A and B are in the ratio 3 : 4, while the ratio of their expenditures stands at 4 : 5. If A manages to accumulate ₹600 as savings and B retains ₹800, what is A’s monthly income? Q2 Two quantities are in the ratio 5 : 7. If both are augmented by 20 units, the revised proportion becomes 7 : 9. Determine the original numbers. Solution: Let numbers be 5x and 7x. (5x+20)/(7x+20)=7/9 ⇒ x=10 ⇒ numbers = 50 and 70 . Q3 The ratio of the ages of a father and his son is 7 : 3. After 6 years, the ratio transforms into 9 : 5. Ascertain their present ages. Solution: Let ages be 7x and 3x. (7x+6)/(3x+6)=9/5 ⇒ x=3 ⇒ Father = 21 yrs , Son = 9 yrs . Q4 In a mixture, the pr...
