Two numbers are in the ratio 9 : 7. If we add 05 in each number then the ratio becomes 5 : 4. Find the least number.
Answer & explanation
Correct answer: option 2
1st : 2nd = 9 : 7
ATQ,
⇒ \(\frac{9R + 5}{7R + 5}\) = \(\frac{5}{4}\)
⇒ 36R + 20 = 35R + 25
⇒ 1R = 5
So, Least No. = 7R = 7 × 5 = 35