Question

the area of the rectangular plot is 2400 and its length is 3/4 ,times of its breadth.what is the perimeter?

Answer 1

let the breadth be a
2400=3/4 a × a
2400×4=3 a × a
9600÷3=a×a
3200=2a
3200÷2=a
1600=a
breadth =1600cm

length=3/4×1600
= 3×400
=1200cm

perimeter=2(1200+1600)
= 2(2800)
=5600cm