Question

There are 6 rows with 18 chairs in each row. in the center of the chairs, 4 rows of 6 chairs are brown.the rest of the hairs are blue. how many chairs re blue?

Answer 1

6 rows with 18 chairs each.

Total number of chairs = 6 * 18 = 108 chairs.


4 rows of 6 chairs are brown :

Total = 4 * 6 = 24 chairs are brown.

Number of chairs that are blue = Total - number of brown = 108 - 24 = 84

84 chairs are blue.

I hope this explains it.

Answer 2

84 chairs are Blue because 6×18-6×4=84