what is rate of interest if principal. amount be 400, simple interest 80 and time 2 year. Choose the correct choice from the following options: A) 10 B) 12.5 C) 25 D) 12 E) 14.5
<gadget id="calculator">400 * 2</gadget>
<output>800</output>

<gadget id="calculator">80 / 800</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/10) * 100</gadget>
<output>10</output>

<result>A</result>
what is rate of interest if principal. amount be 400, simple interest 80 and time 2 year.
multiply(divide(80, multiply(400, 2)), const_100)
"s . i = ( p * r * t ) / 100 80 = 800 r / 100 r = 80 / 8 = 10 % answer a"