Question

a room having dimension 12*12*10 feet . find the no. of brick having dimension 9*5*3 inch also find the caste of brick if ₹12000/2000 brick ( wall is along 5inch)​

Answer 1

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A room having dimension 12*12*10 feet . find the no. of brick having dimension 9*5*3 inch also find the cost of brick if ₹12000/2000 brick ( wall is along 5inch)

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1)18432 pcs of bricks

2)110592 rs

$\:\: \underline{\underline{\bf{\large\mathfrak{~~Given~~}}}}$

Dimension of the room

=(12×12×10)feet

=(144×144×120)inchs..... [as,1feet=12inchs]

Dimension of each brick

=(9×5×3)inchs

$\:\: \underline{\underline{\bf{\large\mathfrak\red{~~Solution~~}}}}$

Now volume of the room

=(144×144×120)inch³

Now volume of the each brick

=(9×5×3)inch³

∴No.of bricks

$= \frac{144 \times 144 \times 120}{9 \times 5 \times 3} \\ = 18432 \: pcs$

∴cost of bricks

$= \frac{12000}{2000} \times 18432 \: rs \\ = 110592 \: rs$

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