Question

the length of a rectangular hall is 4/3 of its width. The area of the rectangular hall is 432 ²
What is the difference between length and width​

Answer 1

Answer:

Let length=l=4x, Breadth=b=3x and height=h=2x

Total surface area of a cuboid=2(lb+bh+lh)

⇒2548=2(4x×3x+3x×2x+4x×2x)

⇒1274=12x

2

+6x

2

+8x

2

⇒26x

2

=1274

⇒x

2

=

26

1274

=49

∴x=7cms

∴l=4x=4×7=28cm

b=3x=3×7=21cm and h=2x=2×7=14cm

∴length=28cm, Breadth=21cm and height=14cm

Step-by-step explanation:

hope this will help you

Answer 2

Step-by-step explanation:

Inter-firm comparison is a natural outcome of uniform costing system. ... Inter-firm comparison can be defined as the technique of evaluating the relative performance, efficiency, costs and profits of firms in a given industry'.