A school has received 40% of the amount it needs for a new building by receiving a donation of $600 each from people already solicited. People already solicited represent 40% of the people from whom the school will solicit donations. How much average contribution is requited from the remaining targeted people to complete the fund raising exercise?	Choose the correct choice from the following options:
A) $200
B) $300
C) $100
D) $400
E) $250
Let us suppose there are 100 people. 40% of them donated $16000 ( 400 * 40 )   $16000 is 40% of total amount.   So total amount = 16000 * 100/40   Remaining amount is 60% of total amount.   60% of total amount = 16000 * (100/40) * (60/100)= 
<gadget id="calculator">16000 * (100/40) * (60/100)</gadget>
<output>24_000</output>
24000   This amount has to be divided by 60 ( remaining people are 60 )   So per head amount is  24000 / 60= 
<gadget id="calculator"> 24000 / 60</gadget>
<output>400</output>
$400   ANSWER:$400
<result>D</result>
A school has received 40% of the amount it needs for a new building by receiving a donation of $600 each from people already solicited. People already solicited represent 40% of the people from whom the school will solicit donations. How much average contribution is requited from the remaining targeted people to complete the fund raising exercise?