The total no. of students in the school are 1250.40% of the students are girls. Find the number of boys.

Answer

To solve the problem, we need to find the number of boys in a school where the total number of students is 1250 and 40% of them are girls. Here’s the step-by-step solution:

### Step 1: Calculate the number of girls
To find the number of girls, we need to calculate 40% of the total number of students.

\[ \text{Number of girls} = 40\% \text{ of } 1250 \]

This can be calculated as:

\[ \text{Number of girls} = \frac{40}{100} \times 1250 \]

### Step 2: Simplify the percentage calculation
We can simplify the calculation by canceling out zeros:

\[ \text{Number of girls} = \frac{40 \times 1250}{100} = 40 \times 12.5 = 500 \]

### Step 3: Calculate the number of boys
Now that we know the number of girls, we can find the number of boys by subtracting the number of girls from the total number of students.

\[ \text{Number of boys} = \text{Total students} - \text{Number of girls} \]

Substituting the values we have:

\[ \text{Number of boys} = 1250 - 500 \]

### Step 4: Perform the subtraction
Now we perform the subtraction:

\[ \text{Number of boys} = 750 \]

### Final Answer
The number of boys in the school is **750**.

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