Practicing Success
The incomes of Kesari and Dileep are in the ratio of 7:5 and their expenditure are in the ratio of 5:3. If the income of Kesari is thrice the expenditure of Dileep, then what is the ratio of savings of Kesari and Dileep? |
i) 5:6 ii) 7:6 iii) 6:7 iv) 7:9 |
ii) 7:6 |
Kesari : Dileep income 7x : 5x exp. 5y : 3 y 3y × 3 = 7x 9y = 7x ⇒ \(\frac{x}{y}\) = \(\frac{9}{7}\) income 7 × 9 : 5 × 9 exp. 5 × 7 : 3 × 7 ---------------------------------------------- savings 28 : 24 ------------------------------------------ savings 7 : 6 |