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Today Neha's and her uncle's ages are in the ratio 4 : 7. Five years later the ratio will be 5 : 8. How old is Neha now? (in years)

Competition practiceRatio, Proportion & Mixtures
  • A20
  • B35
  • C25
  • D16

Step-by-Step Solution

Let ages be 4k and 7k. (4k + 5)/(7k + 5) = 5/8 → 32k + 40 = 35k + 25 → k = 5. Neha = 20 years.
Answer: A) 20

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