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?
A.0.77
B.0.73
C.0.79
D.0.83
Answers
The percentage of people who were not Indians, is 0.79. hence option (C) is correct.
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.
We have to find percentage of people who were not Indians.
no of men = 700 and 20 % of men were Indians
∴ no of men were not Indians = (100 - 20) % of 700
= 80% of 700
= 80 × 700/100
= 560
similarly,
no of women = 500 and 40 % of women were Indians.
∴ no of women were not Indians = (100 - 40)% of 500
= 60 % of 500
= 60 × 500/100
= 300
and no of children = 800 and 10 of children were Indians.
∴ no of children were not Indians = (100 - 10)% of 800 %
= 90% of 800
= 90 × 800/100
= 720
∴ total number of people who were not Indians = 560 + 300 + 720 = 1580
total number of people in Conference = 700 + 500 + 800 = 2000
∴ percentage of people who were not Indians = 1580/2000 × 100
= 1580/20
= 79 % in fraction = 79/100 = 0.79
Therefore the percentage of people who were not Indians, is 0.79. hence option (C) is correct.
Answer:
total no. of not Indians = 80% 0f 700= 80×700/100= 560
=60% of 500= 60×500/100=300
90% of 800= 90×800/100=720
total 1580
Total no of Indians =700+500+800=2000
therefore, percentage of not Indians =1580/2000×100
79%.