average of money that group of 4 friends pay for rent each month is $ 800. after one persons rent is increased by 20 % the new mean is $ 860. what was original rent of friend whose rent is increased? Choices:
A) 800
B) 900
C) 1000
D) 1100
E) 1200
<gadget id="calculator">860 - 800</gadget>
<output>60</output>

<gadget id="calculator">60 * 4</gadget>
<output>240</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">240 / (1/5)</gadget>
<output>1_200</output>

<result>E</result>
average of money that group of 4 friends pay for rent each month is $ 800. after one persons rent is increased by 20 % the new mean is $ 860. what was original rent of friend whose rent is increased?
divide(multiply(subtract(860, 800), 4), divide(20, const_100))
"0.2 x = 4 ( 860 - 800 ) 0.2 x = 240 x = 1200 answer e"