. In a building there are 5 rooms. Each having a equal area .The length of the room is 4m and breadth is 5 m. The height of the rooms are 2m. If 17 bricks are needed to make a square meter then how many bricks are needed to make the floor of a particular room?
a) 320 b) 380 c) 340 d) 300

• given the dimensions of the room
  i.e. length = 4m
  breadth = 5m
  height = 2m
  also 17 bricks need to make 1 square meter.
  to make floor we need length and breadth not height
  therefore, Area of floor = length *breadth
  Area = 4m * 5m = 20square meter
  Therefore No. of bricks required = 17 *20 = 340 ANSWER
• 12 years agoHelpfull: Yes(26) No(1)
• area of floor= length*breadth
  = 4*5= 20 sqr mtr
  no of bricks to cover floor= area of floor*no of bricks required per sqr mtr
  = 20*17=340 bricks
• 12 years agoHelpfull: Yes(3) No(0)
• Since the length of the room is 4m and the breadth is 5m, therefore area of the floor is 5*4 = 20m^2.
  
  since it takes 17 bricks to make to make 1m^2 therefore 20m^2 will take 20*17 = 340 bricks.
• 2 years agoHelpfull: Yes(0) No(0)