HELP PLEASE!
Brian invests £1200 into a savings account. The bank gives 3% compound interest for the first 2 years and 5% thereafter. How much will Brian have after 6 years to the nearest pound

Respuesta :

Answer:

So, the amount invested after 6 years is £1547

Step-by-step explanation:

We can use formula

[tex]A=P(1+r_1)^{t_1}(1+r_2)^{t_2}[/tex]

where

P is money invested

r1 is first interest rate

t1 is time for r1

r2 is second interest rate

t2 is time for r2

[tex]P=1200[/tex]

[tex]r_1=0.03[/tex]

[tex]t_1=2[/tex]

[tex]r_2=0.05[/tex]

[tex]t_2=4[/tex]

now, we can plug values

[tex]A=1200(1+0.03)^{2}(1+0.05)^{4}[/tex]

[tex]A=1547[/tex]