a brick measures 30cm x 10cm x 7 1/2cm.how many bricks will be required for a wall 30m long 2m high and 75 cm thick? Share with your friends Share 2 Shan Agrawal answered this Please find this answer 0 View Full Answer Maitreyee Kapade answered this volume of wall = 3000cm * 200cm * 75cm = 45000000 cm2 volume of brick = 30 * 10 * 7.5 = 2250 cm2 no. of bricks = 45000000 / 2250 = 20000 bricks -1 Animesh Ranjan answered this Volume of wall= 3000*200*75 volume = 45,00,000 sq cm volume of brick =30*10*7.5 volume of brick =2250 sq cm no of bricks required =45,00,000/2,250 no of bricks = 20,000 8