Multiple choice

Anu is 5 years older than Minu. 5 years ago, Anu's age was twice the age of Minu. Find their present ages.

  1. Anu's present age = 15 years, Minu's present age = 10 years

  2. Anu's present age = 10 years, Minu's present age = 15 years

  3. Anu's present age = 10 years, Minu's present age = 10 years

  4. Anu's present age = 15 years, Minu's present age = 15 years
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A Correct answer
Explanation

Let Minu be M, Anu be M+5. 5 years ago: Anu was M, Minu was M-5. Anu's age (M) = 2 * (M-5). M = 2M - 10. M = 10. Anu = 15.

AI explanation

Let Minu's present age be x, so Anu's present age is x + 5. Five years ago, Anu was x and Minu was x minus 5, yielding the equation x = 2 times (x minus 5). Solving gives x = 10, so Minu is 10 and Anu is 15.

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