Multiple choice

After two years, Navya will be 22 years old. The ratio of her age and her father's age will be 1 : 2 after five years. If two years ago, the ratio of her age and her mother's age was 1 : 2, then what is the difference of her father's and mother's current ages?

  1. 6 years

  2. 7 years

  3. 9 years

  4. 11 years

  5. 12 years
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Navya + 2 = 22, so Navya = 20. Navya + 5 = 25. Father + 5 = 2 * 25 = 50. Father = 45. Navya - 2 = 18. Mother - 2 = 2 * 18 = 36. Mother = 38. Difference = 45 - 38 = 7.

AI explanation

Navya's current age is 20 because she will be 22 after two years. After 5 years, the ratio of her age to her father's age will be 1 : 2, meaning when she is 25, he is 50, making his current age 45. Two years ago, Navya was 18, and the ratio of her age to her mother's age was 1 : 2, making her mother 36 at that time and 38 currently. The difference between her father's and mother's current ages is 45 - 38, which equals 7 years.

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