Question

Please give the answer for 18 one

Answer 1

Answer:-30

Step-by-step explanation:let the no be x

x-20=-50

therefore x=-50+20=-30

Answer 2

Let breadth =x

Then,

Length = 3x

perimeter of the rectangular field= 2(l+b)

400. =. 2 (3x + x)

400. =. 2(4x)

400. =. 8x

400./8 =. x

50. =. x

So,. length= 3x = 3× 50 = 150m

breadth = x = 50 m.