Question

the length of a rectangular hall is 4metre less than 3 times the breath of the hall what is the length if the breath is b metres​

Answer 1

Answer:

✩ The length of the rectangular hall = (3b - 4)m.

SOLUTION

Breadth of the rectangular hall = 'b' m.

Length of the rectangular hall is 4 meters less than 3 times the breath of the hall .

⇒ Length of the rectangular hall = (3 × Breadth of the rectangular hall) - 4m

Here,

Breadth of the rectangular hall = 'b' m.

⇒ Length of the rectangular hall = (3 × b ) - 4

∴ The length of the rectangular hall = (3b - 4)m.

$\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\multiput(0,0)(5,0){2}{\line(0,1){3}}\multiput(0,0)(0,3){2}{\line(1,0){5}}\put(0.03,0.02){\framebox(0.25,0.25)}\put(0.03,2.75){\framebox(0.25,0.25)}\put(4.74,2.75){\framebox(0.25,0.25)}\put(4.74,0.02){\framebox(0.25,0.25)}\multiput(2.1,-0.7)(0,4.2){2}{\sf\large (3b - 4)m}\multiput(-1.4,1.4)(6.8,0){2}{\sf\large b m}\put(-0.5,-0.4){\bf A}\put(-0.5,3.2){\bf D}\put(5.3,-0.4){\bf B}\put(5.3,3.2){\bf C}\end{picture}$

QUESTION (FOR PRACTICE)

The length of a rectangular hall is 5 meters more than 2 times the breath of the hall what is the length of the hall , if the breath is b meters​.

Answer(For Verification) → (2b + 5)m.

Answer 2

$\Large{\underbrace{\sf{\purple{Required\:Answer:}}}}$

⛦ Given :

• breadth of rectangular hall= b meters

⛦ To find :

• The Length

⛦ Solution :

acc. to question

Length of the rectangular hall is 4 meters less than 3 times the breath of the hall .

⇒ Length of the rectangular hall = (3 × Breadth of the rectangular hall) - 4m

Hence,

⟼length=3b-4meters.