Question

Area=300 length=3x. Breadth= x find length and breadth of the rectangle?

Answer 1

Area = lb
300 = 3a x a
300/3=axa
100=a2
A=10
L = 3x10 =30
B = 10

Answer 2

Area = Length×Breadth

300 = 3x × x

300 = 3x²

x² = 100

x = 10

Breadth = 10 cm

Length = 30 cm