the total number of students in a school is 1650.70% of the pupils are boys.how many girls are there in the school?
But if your question mean:
The total number of students in a school is 1650.
70% of the pupils are boys.
How many girls are there in the school?
Then:
70% of the pupils are boys.
100 % - 70 % = 30 %
30% of the pupils are girls.
30 % = 30 / 100 = 0.3
0.3 * 1650 = 495
The total number of girls in a school is 495
i did'nt understand this question the last part
Answer is 495
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The total number of students in a school can't be 1650.70%.
To find out how many girls are there in the school, we first need to calculate the number of boys.
The information given states that 70% of the pupils are boys. To find the number of boys, multiply the total number of students by 70% (0.70):
Number of boys = 1650 * 0.70
Next, we can calculate the number of girls. Since we know the total number of students and the number of boys, we can subtract the number of boys from the total number of students:
Number of girls = Total number of students - Number of boys
Substituting the values:
Number of girls = 1650 - (1650 * 0.70)
Calculating the values:
Number of girls = 1650 - 1155
Number of girls = 495
Therefore, there are 495 girls in the school.