Question

What is the interest on $800 at 6% for 4 years?

Answer 1

P=800

R=6%

T=4

I=?

we have,

I=PTR/100

= 800*4*0.06/100

=192

therefore, the interest is $192.......

Answer 2

initial capital = $800

interest = 6%

time = 4 years


the entire amount after 4 years:


`100\%+6\%=106\%=1.06\\\\\$800\cdot(1.06)^4\approx\$800\cdot1.2625\approx\$1009.98`

The interest: $1009.98 - $800 = $209.98


`Answer:\boxed{the\ interest=\$209.98}`