Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers ?Options13 & 8 12 & 715 & 1014 & 9
Question
Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers ?Options13 & 8 12 & 715 & 1014 & 9
Solution
Vamos resolver o problema passo a passo.
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Vamos chamar os dois números de e , onde é o maior número e é o menor número.
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De acordo com a primeira condição, a diferença entre os dois números é 5:
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De acordo com a segunda condição, seis vezes o menor número é 6 unidades a menos que quatro vezes o maior número:
Agora, vamos resolver essas equações simultaneamente.
Primeiro, isolamos na primeira equação:
Substituímos na segunda equação:
Expandimos e simplificamos:
Subtraímos de ambos os lados:
Dividimos ambos os lados por 2:
Agora, substituímos na equação :
Portanto, os números são 12 e 7.
A opção correta é: 12 & 7
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