if $ 120 invested at a certain rate of simple interest amounts to $ 240 at the end of 3 years, how much will $ 150 amount to at the same rate of interest in 6 years? Choose the correct choice from the following options
A) $ 190
B) $ 180
C) $ 200
D) $ 340
E) $ 450
<gadget id="calculator">150 * 6</gadget>
<output>900</output>

<gadget id="calculator">240 - 120</gadget>
<output>120</output>

<gadget id="calculator">120 * 120</gadget>
<output>14_400</output>

<gadget id="calculator">14_400 / 120</gadget>
<output>120</output>

<gadget id="calculator">120 / 3</gadget>
<output>40</output>

<gadget id="calculator">900 * 40</gadget>
<output>36_000</output>

<gadget id="calculator">36_000 / 120</gadget>
<output>300</output>

<gadget id="calculator">150 + 300</gadget>
<output>450</output>

<result>E</result>
if $ 120 invested at a certain rate of simple interest amounts to $ 240 at the end of 3 years, how much will $ 150 amount to at the same rate of interest in 6 years?
add(150, divide(multiply(multiply(150, 6), divide(divide(multiply(subtract(240, 120), 120), 120), 3)), 120))
"120 amounts to 240 in 3 years . i . e ( principal + interest ) on 120 in 3 years = 240 120 + 120 * ( r / 100 ) * ( 3 ) = 240 = > r = 100 / 3 150 in 6 years = principal + interest = 150 + 150 * ( r / 100 ) * ( 6 ) = 450 answer is e ."