Explain why the following quotient is incorrect:

When you divide a positive number (such as 1,000) by a number greater than 1 (such as 5), the answer must be smaller than the number you started with. The answer must be smaller than 1,000. 2,000 is greater than 1,000, so it cannot be correct. The correct quotient is 1,000/5 = 200.

3.0

Step-by-step explanation:

If the ratio is boys to girls, in fraction form (ratio form) that's

When we set up the ratio using the numbers, we have to keep the boy stuff with the boy stuff on top, and the girl stuff with the girl stuff on bottom.  So the ratio with the given numbers is

Reducing that down to decimal form, since 12 is divisible by 4 evenly, would be 3.0