a man can row 11 kmph in still water. when the river is running at 1.2 kmph, it takes him 1 hour to row to a place and back. what is the total distance traveled by the man? Pick one:
A) 6.24 km B) 6 km C) 5.76 km D) 5.66 km E) 10.87 km
<gadget id="calculator">11 + 1.2</gadget>
<output>12.2</output>

<gadget id="calculator">11 - 1.2</gadget>
<output>9.8</output>

<gadget id="calculator">12.2 * 9.8</gadget>
<output>119.56</output>

<gadget id="calculator">12.2 + 9.8</gadget>
<output>22</output>

<gadget id="calculator">119.56 / 22</gadget>
<output>5.434545</output>

<gadget id="calculator">5.434545 * 2</gadget>
<output>10.86909</output>

<result>E</result>
a man can row 11 kmph in still water. when the river is running at 1.2 kmph, it takes him 1 hour to row to a place and back. what is the total distance traveled by the man?
multiply(divide(multiply(add(11, 1.2), subtract(11, 1.2)), add(add(11, 1.2), subtract(11, 1.2))), const_2)
"m = 11 s = 1.2 ds = 12.2 us = 9.8 x / 12.2 + x / 9.8 = 1 x = 5.43 d = 5.43 * 2 = 10.87 answer : e"