Plant A is 25 ft tall and plant B is 20 ft tall. Plant A grows 2 ft per week and Plant B grows 2 15ft per week. In how many weeks will the heights of the two plants become equal?

Answer :

Given
Height of plant A = 25 ft
Height of plant B = 20 ft
And
Rate of growth of plant A = 2 ft / week 
Rate of growth of Plant B = 2.15 ft / week

Let these plants at same height after  week , So
Height of plant A after  week 
= 25 + 2 x
And
Height of plant B after x week 
= 20 + 2.15x
So, for find out how many week it take to make height same 

25 + 2x  = 20 + 2.15x

0.15x = 5

x = 33.33

So,
after 33.33 week both plant at same height            ( Ans )

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how much does plant b grow per week.....it is not clear..

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THE QUESATION IS NOT CLEAR AT ALL ABOUT PLANT B WEEK.

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