there are 45 children in a class.if there are 3 more girls than boys,how many are girls?
To find out how many girls are in the class, we need to determine the number of boys first.
Let's assume the number of boys is 'x'. Therefore, the number of girls would be 'x + 3', as stated in the question.
We know that the total number of children in the class is 45. So, we can set up an equation:
Number of boys + Number of girls = Total number of children
x + (x + 3) = 45
Now we can solve this equation to find the value of 'x' (the number of boys):
2x + 3 = 45
2x = 45 - 3
2x = 42
x = 42 / 2
x = 21
We find that the number of boys in the class is 21.
To find the number of girls, we add 3 to the number of boys:
Number of girls = Number of boys + 3
Number of girls = 21 + 3
Number of girls = 24
Therefore, there are 24 girls in the class.