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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
Kevin is 3 years older than Daniel. two years ago, Kevin was 4 times as old as Daniel. How old is Kevin now?
Solution:
Let us convert the given statements to algebraic expressions.
Let present age of Daniel = x years
Age of Kevin = 3 + x years
Two years ago,
Age of Daniel = x - 2
Age of Kevin = 3 + x - 2 = x + 1
Given, Kevin was 4 times as old as Daniel
⇒ x + 1 = 4(x - 2)
⇒ x + 1 = 4x - 8
⇒ 4x - x = 8 + 1
⇒ 3x = 9
⇒ x = 3
Thus, the present age of Daniel = 3 years.
Age of Kevin = 3 + 3
= 6 years
Therefore, Kevin is 6 years old now.
Kevin is 3 years older than Daniel. two years ago, Kevin was 4 times as old as Daniel. How old is Kevin now?
Summary:
Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel. Kevin is 6 years old now.
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