Question

54. A tree is at present 9 feet tall. If every year it grows 1/9 of its height, what will be the height of the tree after three years?
(a) 12 feet
(b) 12:34 feet
(c) 13 feet
(d) 13.10 feet​

Answer 1

Answer:

a. 12 feet is the correct answer

Step-by-step explanation:

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Answer 2

The height of the tree after three years will be 12:34 feet.

Given: A tree is at present 9 feet tall. and every year it grows 1/9 of its height.

we have to find the height of the tree after three years.

The height of the tree after one year will be

$=9+9*\frac{1}{9} \\=9+1=10$

The height of the tree after two years will be

$=10+10*\frac{1}{9} \\=10+1.11\\=11.11$

The height of the tree after three years will be

$=11.11+11.11*\frac{1}{9} \\=11.11+1.23\\=12.34$

The height of the tree after three years will be 12:34 feet.