Question

Help me please?

Answer 1

Let the time taken for the trees to be of same height be `x`.

Height of tree A after `x` years `=> 36 + 15x`
[as initial height is 36inces and 15inches are added every year]

Height of tree B after `x` years `=> 48 + 10x`
[as initial height is 48inces and 10inches are added every year]

SO when the heights are same,

`36+15x = 48 +10x`

`5x = 12`

`x=2.4 " years"`

Now, height after `2.4 " years"= 48 + 10(2.4)`

`=> 48 + 24 = 72 " inches"`