Question

a rectangular field is 2x m long and x m broad .its perimeter is 90m .make an equation and solve it to find x . then ,find the area of the field

Answer 1

2x+x=90
3x=90
x=90/3=30
lengtu=30×2=60
breadth=30

area=60×30=1800sqm

Answer 2

given, length of the rectangular field = 2x m
breadth of the field = x m
perimeter of the the field = 90m

so the equation for solving x is
2x + x = 90

for finding the area of the field weust find the value of x

2x + x = 90

=> 3x = 90

=> x = 90/3
= 30 m

so
breadth = x = 30m
length = 3x = 2×30 = 60m

area of the field
= length × breadth
= 60×30
= 1800 m²