A hall is 15m long and 12m broad.If the sum of the areas of the floor and the ceiling is equal to the sum of areas of the four walls, the volume of hall is?

• acc. to ques.
  area of 4 wall=sum of area of floor and celling
  2(l+b)*h=2(l*b)
  (15+12)*h=2(12*15)
  on solving h=20/3m
  volume=l*b*h
  =12*15*20/3
  =1200m^3
  
• 9 years agoHelpfull: Yes(40) No(3)
• given l=15m,b=12m,h=?
  according to the question
  2(l*b)=2(l*h)+2(b*h)
  2(15*12)=2(15*h)+2(12*h)
  360=30h+24h
  h=6.66m
  thus the volume of hall=l*b*h=15*12*6.6=1200 m^3
• 9 years agoHelpfull: Yes(12) No(1)
• 180*2=2*(h*12)+2*(h*15)
  so h=20/3
  volume=12*15*(20/3)=1200 m3
  
• 9 years agoHelpfull: Yes(3) No(1)
• 2*(15*12)=2*(h*15)+2*(h*12)
  54h=360
  h=6.66
  volume=6.66*12*15=1198.8 m^3
• 9 years agoHelpfull: Yes(2) No(0)
• as the question given as.....
  given l=15m,b=12m,h=?
  according to the question
  2(l*b)=2(l*h)+2(b*h)
  2(15*12)=2(15*h)+2(12*h)
  360=30h+24h
  h=6.66m
  thus the volume of hall=l*b*h=15*12*6.6=180*6.6
  =
• 9 years agoHelpfull: Yes(1) No(3)
• area of floor + area of ceiling =2*(area of wall according to long)+ 2*(area of wall according to broad)
  15*12 +15*12=2*(hight*15)+ 2*(hight*12)
  hight=360/54
  so, volume=(360/54)*15*12=1200
• 9 years agoHelpfull: Yes(1) No(1)
• 360=4*(12*h)
  h=30/4
  now- volume = l*b*h
  15*12*(30/4)=1350
  answer=1350
• 9 years agoHelpfull: Yes(0) No(1)
• 1200m^3
  h=15*12/15+12=20/3
  volume=15*12*20/3=1200
  
• 9 years agoHelpfull: Yes(0) No(0)
• 2(15+12)*h=15*12
  h=180/27=20/3
  volume is=15*12*20/3=1200cm^3
• 9 years agoHelpfull: Yes(0) No(0)
• 12×15×6.66=1198.8m^3
• 8 years agoHelpfull: Yes(0) No(0)
• 2(15x12) = 2(15xh) + 2(12xh)
  
  solving above we get h = 20/3
  
  volume of cuboid = lbh
  
  20/3 x 15 x 12 = 1200
• 8 years agoHelpfull: Yes(0) No(0)