In the recent, cyber security conference in London, out of 800 men, 900 women, 200 children present inside the building premises, 20% of the men, 30% of the women and 50% of the children were Indians. Find the percentage of people who were not Indian?	Choose the correct choice from the following choices:
A) 73.22
B) 72.11%
C) 79.22
D) 74.66
E) 88.22
Solution: Number of Indians men present there = 800*20/100= 
<gadget id="calculator">800*20/100</gadget>
<output>160</output>
160   Indian women= 900*30/100= 
<gadget id="calculator">900*30/100</gadget>
<output>270</output>
270   Indian children= 200*50/100= 
<gadget id="calculator">200*50/100</gadget>
<output>100</output>
100.   Total member present in cyber security conference= 800+900+200= 
<gadget id="calculator">800+900+200</gadget>
<output>1_900</output>
1900   Total Indian= 160+270+100= 
<gadget id="calculator">160+270+100</gadget>
<output>530</output>
530   Hence, % of Indian present there= 530*100/1900 = 27.89%   % of people who were not Indian = 100-27.89= 
<gadget id="calculator">100-27.89</gadget>
<output>72.11</output>
72.11%.   Answer 72.11%
<result>B</result>
In the recent, cyber security conference in London, out of 800 men, 900 women, 200 children present inside the building premises, 20% of the men, 30% of the women and 50% of the children were Indians. Find the percentage of people who were not Indian?