1. **State the problem:** There are 35 kids in a class with boys to girls ratio of 3:4. We need to find how many boys and girls are there. 2. **Use the ratio formula:** If the ratio of boys to girls is 3:4, then the number of boys is $3x$ and the number of girls is $4x$ for some $x$. 3. **Set up the equation:** Total kids = boys + girls $$3x + 4x = 35$$ 4. **Simplify the equation:** $$7x = 35$$ 5. **Solve for $x$:** $$x = \frac{35}{7}$$ $$x = 5$$ 6. **Find the number of boys and girls:** - Boys = $3x = 3 \times 5 = 15$ - Girls = $4x = 4 \times 5 = 20$ **Final answer:** There are 15 boys and 20 girls in the class.