The average age of three persons is 30 years. If the ratio of three ages is 3 : 5 : 7. What is the age of the youngest person?

গণিত Age Problems 07 Oct, 2020

প্রশ্ন The average age of three persons is 30 years. If the ratio of three ages is 3 : 5 : 7. What is the age of the youngest person?

  • ক.
    18 years
  • খ.
    8 years
  • গ.
    16 years
  • ঘ.
    42 years

সঠিক উত্তর

18 years

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