Which least number must be added to two numbers that are in the ratio of 13 : 9 so that they become in the ratio of 6 : 5?
Answer & explanation
Correct answer: option 4
Let the number which is to be added = x
ATQ,
\(\frac{13 + x}{9 + x}\) = \(\frac{6}{5}\)
65 + 5x = 54 + 6x
x = 9