10 years ago, Chandravati’s mother was 4 times older than her daughter

10 years ago, Chandravati’s mother was 4 times older than her daughter. After 10 years, the mother will be twice older than the daughter. The present age of Chandravati is
(a) 5 years
(b) 10 years
(c) 20 years
(d) 30 years

Anurag Mishra Professor Asked on 16th May 2016 in Maths.
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1 Answer(s)

Answer: (c) 20 years 

Solution:-
Let Chandravati’s age 10 years ago be X years.
Therefore, mother’s age 10 years ago = 4 X years
From Question 2(x + 20) = (4 X + 20)
=> X = 10
So, Present age of Chandravati = (x + 10) = 20 years. 

Hence, the correct answer is option (c) 20 years. 

Anurag Mishra Professor Answered on 18th May 2016.
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