Two numbers are in the ratio 8 : 7. If we add 09 in each number then the ratio becomes 5 : 4. Find the least number.
Answer & explanation
Correct answer: option 4
1st : 2nd = 8 : 7
ATQ,
⇒ \(\frac{8R + 9}{7R + 9}\) = \(\frac{5}{4}\)
⇒ 32R + 36 = 35R + 45
⇒ 3R = 9
1R = 3
So, Least No. = 7R = 7 × 3 = 21