In Heather's class room there are red chairs,yellow chairs, and blue chairs. There are 3 red chairs. There are 4 times as many yellow chairs as red chairs, and there are 3 fewer blue chairs than yellow chairs. How many chairs are there in Heather's classroom?

3 red

3 * 4 = 12 yellow
12 - 3 = ______ blue

Step 1: Determine the number of yellow chairs.

There are 4 times as many yellow chairs as red chairs, and since there are 3 red chairs, there must be 4 x 3 = 12 yellow chairs.

Step 2: Determine the number of blue chairs.
There are 3 fewer blue chairs than yellow chairs, so there must be 12 - 3 = 9 blue chairs.

Step 3: Calculate the total number of chairs in the classroom.
To determine the total number of chairs, add up the number of red, yellow, and blue chairs:
3 (red chairs) + 12 (yellow chairs) + 9 (blue chairs) = 24 chairs.

Therefore, there are 24 chairs in Heather's classroom.

To find out how many chairs are there in Heather's classroom, we need to add up the number of red chairs, yellow chairs, and blue chairs.

Given that there are 3 red chairs, we can write it as:
Red chairs = 3

Since there are 4 times as many yellow chairs as red chairs, we can calculate the number of yellow chairs:
Yellow chairs = 4 * Red chairs = 4 * 3 = 12

And finally, it is mentioned that there are 3 fewer blue chairs than yellow chairs, so we can calculate the number of blue chairs:
Blue chairs = Yellow chairs - 3 = 12 - 3 = 9

To find the total number of chairs in Heather's classroom, we just need to add up the number of red, yellow, and blue chairs:
Total chairs = Red chairs + Yellow chairs + Blue chairs = 3 + 12 + 9 = 24

Therefore, there are 24 chairs in Heather's classroom.