Present age of Vinod and Ashok are in ratio of 3:4 respectively. After 5 years, the ratio of their ages becomes 7:9 respectively. What is Ashok’s present age is ?
Question
Present age of Vinod and Ashok are in ratio of 3:4 respectively. After 5 years, the ratio of their ages becomes 7:9 respectively. What is Ashok’s present age is ?
Solution
Vamos resolver o problema passo a passo.
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Vamos definir as idades atuais de Vinod e Ashok.
- Suponha que a idade atual de Vinod seja .
- Suponha que a idade atual de Ashok seja .
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Após 5 anos, as idades de Vinod e Ashok serão:
- Idade de Vinod:
- Idade de Ashok:
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De acordo com o problema, após 5 anos, a razão das idades de Vinod e Ashok será 7:9. Portanto, podemos escrever a seguinte equação:
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Vamos resolver essa equação para encontrar o valor de :
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Subtraindo de ambos os lados da equação:
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Subtraindo 35 de ambos os lados da equação:
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Agora que temos o valor de , podemos encontrar a idade atual de Ashok:
Portanto, a idade atual de Ashok é 40 anos.
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