The ratio of the age of Ram and Mukesh 10 years ago was 1 : 3. The ratio of their age 15 years hence will be 2 : 3, then the ratio of their present age is?
Answer & explanation
Correct answer: option 2
Ratio of age 10 years ago:
Ram Mukesh
x : 3x
ATQ,
⇒ \(\frac{x + 15}{3x + 15}\) = \(\frac{2}{3}\)
⇒ 3x + 45 = 6x + 30
⇒ 15 = 3x
⇒ x = 5
Now,
Ram Mukesh
5 : 15 ← (age 10 years ago)
+10 +10
15 25 (present age)
3 : 5