Question

A mango tree was planted 2 years ago the rate of its growth 20 % per annum if at present the height of tree is 162 cm what its was when tree was planed

Answer 1

yeah hi

present height of the tree is 162 cm

two years before hight is x

annual growth rate is 20%

per year 20% , for two years 40%

we can take

140% of x is 162cm

(140/100)x = 162

x = 1620/14

x = 115.7cm

or another metod find attachment