cuboidal boxes can be stored in it it the volume Ul lle DU5. A rectang

1.	cuboidal boxes can be stored in it it the volume Ul lle DU5. A rectangular pit 1.4 m long, 90 cm broad and 70 cm deep was dug and 1000 bricksof base 21 cm by 10.5 cm were made from the earth dug out. Find the height of eachbrick.
Answer» HEIGHT WILL BE 4 CM shape of a cuboid is 1.4m × 90 cm × 70 cm or 140 cm × 90 cm × 70 cm Volume of the pit = lbh cu units.= 140 × 90 × 70 = 882000cu cm Dimensions of the bricks is 21 cm × 10.5 cm Let height of the brick be 'H' cmVolume of the brick = 21 × 10.5 × h cu. cmHence volume of 1000 bricks = 1000 × 21 × 10.5 × H1000 × 21 × 10.5 × h = 882000⇒ H = 4 cm

cuboidal boxes can be stored in it it the volume Ul lle DU5. A rectangular pit 1.4 m long, 90 cm broad and 70 cm deep was dug and 1000 bricksof base 21 cm by 10.5 cm were made from the earth dug out. Find the height of eachbrick.

Answer»

HEIGHT WILL BE 4 CM

shape of a cuboid is 1.4m × 90 cm × 70 cm or 140 cm × 90 cm × 70 cm

Volume of the pit = lbh cu units.= 140 × 90 × 70 = 882000cu cm

Dimensions of the bricks is 21 cm × 10.5 cm

Let height of the brick be 'H' cmVolume of the brick = 21 × 10.5 × h cu. cmHence

volume of 1000 bricks = 1000 × 21 × 10.5 × H1000 × 21 × 10.5 × h = 882000⇒ H = 4 cm