Helen had to arrange some chairs in a fixed number of rows. If she put 8 chairs in each row, she would be short of 7 chairs. If she put 7 chairs in each row, she would have 2 chairs left. How many chairs were there?

In Leah's classroom there are red chairs, yellow chairs, and blue chairs. There are 8 red chairs. There are 4 times as many yellow chairs as red chairs, and there are 6 fewer blue chairs than yellow chairs. How many chairs are there in Leah's classroom?

A cafeteria has 6 round tables and 12 rectangular tables. Each round table has 5 chairs, and each rectangular table has 8 chairs. How many chairs are there in all?

Each of two women and three men is to occupy one chair out of eight chairs, each of which is numbered from one to eight. First , women are to occupy any two chairs from those numbered one to four, and then the three men would occupy any three chairs out of the remaining six chairs. What is the maximum number of different ways in which this can be done ?Options4014403660132

Consumers will buy 1,700 chairs if the price is $200. If the price is $100, they will be able to afford to buy more. So, they would buy 2,800 chairs. What is the quantity of chairs demanded at $200?

There are five blue chairs and four pink chairs in a class of nine students, comprising five boys and four girls. Before lunch, the five boys sat on the blue chairs and the four girls sat on the pink chairs. If after lunch, no girl sat on the same chair on which she was sitting before lunch, but all the girls sat on pink chairs, in how many ways can all the students be seated?