Problema Solution

East high school's student council plans to buy some stools and chairs for a new student center. They need to buy 25 more chairs than stools. The chairs cost $32 each and the stools cast $28 each. If the budget $2,620, how many chairs can they buy?

Answer provided by our tutors

let


s = the number of stools bought, s is integer

c = the number of chairs bought, c is integer


they need to buy 25 more chairs than stools


c = s + 25 => s = c - 25


the chairs cost $32 each and the stools cast $28 each and the budget is $2,620


32c + 28s <= 2620


if i plug s = c - 25 in the above inequality i get


32c + 28(c - 25) <= 2620


by solving the inequality we find


c <= 55.33


since c is integer we can write c<=55


they can buy 55 chairs the most.