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When the mortgage is completely paid off for Mark and Lynne's house, it will be 3 times as old as it is now. If they have 10 years left on the mortgage, how old is the house right now

Sagot :

Answer:

The house is 5 years old now

Explanation:

Let the current age of the house be x

The mortgage still has 10 years left

This means that the mortgage will be completely paid off in 10 years time

Age of the house in 10 years time = x + 10

In 10 years time, the house wil be 3 times as old as it is now

The equation will, therefore, become:

x + 10 = 3x

Solve for x in the equation above to find the current age of the house

x + 10 = 3x

3x - x = 10

2x = 10

x = 10/2

x = 5

The house is 5 years old now