25% of the girls in a school have long hair.If 75 of the girls in the school have long hair, find the total number of girls in the school.
Question
25% of the girls in a school have long hair. If 75 of the girls in the school have long hair, find the total number of girls in the school.
Solution
To find the total number of girls in the school, we can use the information given in the problem.
Step 1: We know that 25% of the girls have long hair. This is equivalent to 0.25 (since 25% = 25/100 = 0.25).
Step 2: We also know that the number of girls with long hair is 75.
Step 3: We can set up the equation 0.25 * Total number of girls = 75.
Step 4: To find the total number of girls, we can rearrange the equation to solve for the total number of girls. This gives us Total number of girls = 75 / 0.25.
Step 5: Doing the division gives us 300.
So, there are 300 girls in the school.
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