one man wants to build a wall the length and breadth of the wall are 20,30 respectively.if he requires 35 bricks for one square centimeter then how many bricks he need to build the wall.

12000
21000
18000
24000

• 20*30*35=21000
• 11 years agoHelpfull: Yes(9) No(0)
• area of wall is 20cm*30cm=600sq cm.since 1 sq cm requires 35 bricks,so 600 sq cm will require 600*35=21000 bricks.
• 11 years agoHelpfull: Yes(5) No(0)
• 21000....as the area of the rectangle is l*b=20*30=600 sq. cm.
  for 1 sq. cm. it requires 35 bricks....for 600 sq.cm. it will be 600*35=21000.
  
  
• 11 years agoHelpfull: Yes(2) No(0)
• area=l*b
  20*30=600sqcm,given 1sqcm=35 bricks
  600*35=21000bricks
  
• 11 years agoHelpfull: Yes(2) No(0)
• length*bredth*height=20*30*35=21000
• 11 years agoHelpfull: Yes(1) No(0)
• area of wall= l* b= 20*30=600
  then req. bricks=600*35=21000
• 11 years agoHelpfull: Yes(1) No(0)
• 30*20=21000
• 11 years agoHelpfull: Yes(1) No(0)