A cistern 2 m long, 1 m wide and 1.5 m deep contains 2 m3 water. How many bricks 20 cm by 10 cm by 7.5 cm can
be put in it when a brick is supposed to absorb 1/7 of its own volume of water?
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Answer:
2000
Step-by-step explanation:
There is no change in the volume of the brick due to the absorption of water.
so,
no. of bricks = volume of cistern/volume of brick
= (2mx1mx1.5m)/(20cmx10cmx7.5cm)
= 3m³/1500cm³
= 3x(100)³cm³/1500cm³
= 3000000/1500 = 2000.
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