Hey Guys.. Here is the exact question. And the Solution >
Since the height grown each year is constant, let it be x.
At the end of 4 yrs the height is x+4x.
At the end of 6 yrs, the height is x+6x.
Now, as per the problem , we get an equation as follows;
(4+4x) + 1/5(4+4x) = 4+6x .
Solving the above equation, we get x = 2/3 which is the answer.
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