In the recent, climate conference in New York, out of 700 men, 500 women, 800 children present inside the building premises, 20% of the men, 40% of the women and 10% of the children were Indians. Find the percentage of people who were not Indian?

Explanation:-

Number of Indians men present there = 700*20/100 = 140
Indian women = 500*40/100 = 200
Indian children = 800*10/100 = 80.
Total member present in climate conference = 700+500+800 = 2000
Total Indian = 200+140+80 = 420
Hence, % of Indian present there = 420*100/2000 = 21%
% of people who were not Indian = 100-42 = 79%.