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11100112001100011300

Answer :

BSolution :

Volume of the wall `= 270 xx 300 xx 350 = 28350000cm^(3)` <br> Since,`(1)/(8)` space of wall is convered by mortar. <br> So, remainig space of wall = Volume of wall - Volume of mortar <br> `= 28350000 - 28350000 x(1)/(8)` <br> ` 28350000 - 3543750 = 24806250 cm^(3)` <br> Now, volume of one brick `= 22.5 xx 1125 xx 8.75 = 2214.844 cm^(3)" " [therefore "Volume of cuboid" = "lenght" xx "breadth" xx "height"]` <br> `therefore` Requried number of bricks `=(24806250)/(2214.844) = 11200` (approx) <br> Hence, the number of bricks used to construct the wall is 11200.