Problema Solution
An airplane has a total of 152 seats. The number of coach-class seats is 5 more than six times the number of first-class seats. How many of each type of seat are there on the plane?
Answer provided by our tutors
Let number of first-class seats=x.
So, number of coach-class seats= 6x+5.
Total number of seats=152.
So, x+6x+5=152
7x=147
x=21
First class seats=21.
coach-class seats= 131