the area of four walls of a room is 960sq .m.if the length of the room is thrice its breadth and height is 8m,find the area of the

1 thought on “the area of four walls of a room is 960sq .m.if the length of the room is thrice its breadth and height is 8m,find the area of the”

1. Answer:

   let breadth of room be y and length be 3y

   LSA of cuboid= 2(lh+bh)

   960 = 2(3y×8+y×8)

   960 = 2(24y+8y)

   960 = 2(32y)

   960 = 64y

   960/64 = y

   15 = y

   h = 8m

   b= 15m

   l=3y

   l=3×15

   l= 45m

   area of floor= l×b

   =45×15

   =675 m²

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