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?
Answer & explanation
Correct answer: option 2
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