there are 400 employees in a room. 99 % are managers. how many managers must leave the room to bring down the percentage of managers to 98 %? Select:
A) 50
B) 100
C) 150
D) 200
E) 250
<gadget id="calculator">99 / 100</gadget>
<output>99/100 = around 0.99</output>

<gadget id="calculator">400 * (99/100)</gadget>
<output>396</output>

<gadget id="calculator">98 / 100</gadget>
<output>49/50 = around 0.98</output>

<gadget id="calculator">400 * (49/50)</gadget>
<output>392</output>

<gadget id="calculator">396 - 392</gadget>
<output>4</output>

<gadget id="calculator">1 - (49/50)</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">4 / (1/50)</gadget>
<output>200</output>

<result>D</result>
there are 400 employees in a room. 99 % are managers. how many managers must leave the room to bring down the percentage of managers to 98 %?
divide(subtract(multiply(400, divide(99, const_100)), multiply(400, divide(98, const_100))), subtract(const_1, divide(98, const_100)))
"there are 396 managers and 4 others . the 4 others would compose 2 % of the total number of people if there were 200 people in the room . thus 200 managers must leave . the answer is d ."