Mr Johnson bought seven armchairs and high stools. he paid a total of $1,650. The armchairs each cost $300 while the high stools each cost half the amount of 1

Question

armchair. This is the question find the number of armchairs he bought.

Answer 1

Let x = number of armchairs

     7 - x = number of stools

 

So, cost of x armchairs = 300x and

cost of 7 - x stools = 150(7 - x)

 

Then, 300x + 150(7 - x) = 1650

         300x + 1050 - 150x = 1650

         150x + 1050 = 1650

         150x = 600

              x = 4

 

Answer:  there are 4 armchairs and 3 stools