Question

The height of a tree when planted is 1.2 m.
One year later, the height of the tree is 2.1 m.

Calculate the percentage
increase in the height of the tree
over the year, correct to 1 d.p.
​

Answer 1

Answer:

75%

Step-by-step explanation:

increased height = 2.1 - 1.2 = 0.9 m

Increased percentage = (0.9/1.2)*100

$=\frac{0.9*10}{1.2*10}*100\\\\=\frac{9}{12}*100=3*25$

= 75%

Answer 2

Answer:

75%is the correct answer

Step-by-step explanation:

U can calculate it