CUET Preparation Today
Two numbers are in the ratio 5 : 3. On decreasing each of them by 20, the ratio becomes 9 : 5. The difference between the number is? |
40 80 60 100 |
80 |
ATQ ⇒ \(\frac{5R -20}{3R - 20}\) = \(\frac{9}{5}\) ⇒ 25 R - 100 = 27R - 180 ⇒ 2R = 80⇒ 1R = 40 Hence, Difference b/w numbers = 5R - 3R = 2R = 2 × 40 = 80 |
