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The age of the father is twice the sum o...

The age of the father is twice the sum of the ages of his two children. After 20 yr, his age will be equal to the sum of the ages of his children. Find the age of the father.

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The correct Answer is:
40 years
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VK GLOBAL PUBLICATION-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES -PROFICIENCY EXERCISE ( SHORT ANSWER QUESTIONS II)
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