Sonali is 40 years old and Nitya is 60 years old. How many years ago was the ratio of their ages 3 : 5 ?
Answer & explanation
Correct answer: option 2
Let us consider that ,
X years ago , ratio of ages of Sonali and Nitya is 3 : 5
According to question,
\(\frac{ 40 - X }{ 60 - X}\) = \(\frac{3}{5}\)
200 - 5X = 180 - 3X
20 = 2X
X = 10
So, 10 years ago , ratio of ages of Sonali and Nitya is 3 : 5
The correct answer is option (2) : 10 years