Multiple choice

One year ago, the ratio of Siddhi and Anushka's age was 6 : 7 respectively. Four years hence, this ratio would become 7 : 8. How old is Anushka?

  1. 56 years

  2. 36 years

  3. 63 years

  4. 44 years
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let ages one year ago be 6x and 7x. Current ages are 6x+1 and 7x+1. Four years hence, ages are 6x+5 and 7x+5. Ratio: (6x+5)/(7x+5) = 7/8. 48x + 40 = 49x + 35, so x = 5. Anushka's current age is 7(5) + 1 = 36.

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