Answer :
To solve the given problem
We can consider,
30% are girls of 30 people
70% are boys in 30 people
In order to get the number, we just multiply the total number
of people with the percentage of the designated target populace.
1. 30 x 0.3 = 9 girls
2. 30 x 0.7 = 21 boys
3. 21 boys + 9 girls = 30 people
Hence, there are 21 boys.
1. 30 x 0.3 = 9 girls
2. 30 x 0.7 = 21 boys
3. 21 boys + 9 girls = 30 people
Hence, there are 21 boys.
