Question

A rectangle with sides 5 and `3x-1` has an area of 55 square units. What are its sides?

Answer 1

Sides are 5 and 4

Explanation:

Length x Breadth = Area of rectangle
`5*(3x-1)=55`
`15x-5=55`
`15x=60`
`x=60/15=4`
`:.` Length`=5` and `Breadth=4`