Junior Class 5 Answered
A wall 10 m long, 1 m broad and 4 m high is to be constructed with bricks 20 cm long, 10 m broad and 10 cm high. How many bricks are required?
Asked by arafathanwer | 08 Mar, 2019, 15:17: PM
volume of wall = 10×1×4 m3 = 40 m3
1 m3 = 100 cm × 100 cm × 100 cm = 10,00,000 cm3
Hence volume of wall in cm3 = 40×10,00,000 cm3
volume of single brick = 20×10×10 = 2000 cm3
Number of bricks required to construct the wall = ( 40 × 10,00,000 ) / 2000 = 20,000 bricks
Answered by Thiyagarajan K | 09 Mar, 2019, 12:47: PM
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