Pls solve the third one Share with your friends Share 0 Josepaul Paulachan answered this Dear Student 3) Area of hall = 288m2 Let the length=l breadth = b Area = l×b288 =l× bb=288lNow, Given, Length is increased by 6mBreadth is decreased by 4mnew length = l+6 new breadth = b-4Area = l+6b-4288 =l+6(b-4)288=(l+6)(288l-4)l+672l-1 =72(l+6)(72-l)=72l72l+432-6l-l2=72ll2+6l-432=0l2+24l-18l-432 =0l(l+24)-18(l+24) =0(l+24)(l-18) =0l =-24 or l =18 length of the rectangle can’t be negative. Hence, the length of the given room is 18 m.Regards -1 View Full Answer