Question

4. The length of a rectangular hall is 4 metres more than twice its breadth. If the breadth is b metres and
perimeter is 19 metres. What is its length?
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Answer 1

Answer:

length of rectangle is 4 metres more than twice its breadth then the perimeter is 2 of l plus b 2 of 4 plus 2x then the answer is 8 plus 2x that is the length

Answer 2

Answer:

given

breadth = b

length = 2b + 4

perimeter = 19

2*(2b+4+b) = 19

2*(3b+4) = 19

6b + 8 = 19

6b = 11

b = 11/6

length = 2b+4

= 2*11/6+4

= 11/3+4

= (11+12)/3

= 23/3