Question

algebraic expression



the length of rectangular hall is 8 m less than 2 times the breath of the Hall if what is length if the breath is 5 metre
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Answer 1

Step-by-step explanation:

21

Given: Length of the rectangular hall=5+breadth of the rectangular hall

⇒l=5+b

Perimeter of the rectangular hall=2(l+b)

⇒74=2(5+b+b)

⇒5+2b=

2

74

=37

⇒2b=37−5=32m

∴b=

2

32

=16m

∴l=5+b=5+16=21m

∴length=21 m and breadth=16 m