Question

the length of the rectangular hall is 5 metre more than its breadth if the perimeter of the hall is 74 M find its length and breadth

Answer 1

Heya user ,
Here is your answer !!

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Let the breadth of the rectangular hall be x m .
There fore , the length of the rectangular hall be ( x + 5 ) m .

Perimeter given = 74 m .

Acc. to the question , 
2 { x + ( x + 5) } = 74 
=> 2 ( 2x + 5 ) = 74 
=> 2x + 5 = 37 
=> 2x = 32
=> x = 16 .


So , the breadth of the rectangular hall is = 16 cm .
and , the length of the rectangular hall is = 21 cm . 

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Hope it helps !!

Answer 2

l = x+5
b= x

Perim. = 2 (l+b)

=> 2 ( x+5+x)
=> 2 (2x+5)
=> 4x + 10= 74
=> x = 74 - 10 / 4
=> x = 16

Therefore,
l = 16 + 5 = 21m
b =16m