Q: The age of a mother today is thrice that of her daughter. After 12 years, the age of the mother will be twice that of her daughter. The present age of the daughter is:

A 12 years
B 14 years
C 16 years
D 18 years

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Answer: A

Explanation:

Let x be the present age of the daughter.
The age of the mother today is thrice that of her daughter, which means that the mother's age today is 3 * x years.
After 12 years, the age of the mother will be twice that of her daughter, which means that the mother's age will be 2 * (x + 12) years.
Since the mother's age after 12 years is twice that of her daughter, this means that 3 * x = 2 * (x + 12).
Solving this equation for x, we get x = 12.
Therefore, the present age of the daughter is 12 years.

Q: The age of a mother today is thrice that of her daughter. After 12 years, the age of the mother will be twice that of her daughter. The present age of the daughter is:

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