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tatuchka [14]
3 years ago
12

Question is in the picture . I humbly request to answer fast.​

Mathematics
1 answer:
Tatiana [17]3 years ago
7 0

Answer:

Volume of a brick = 0.00975 m³.

Step-by-step explanation:

Volume of the wall = 63 m³

Cost to build the wall = 84000 Rs

Cost to prepare a brick = 13 Rs

Since, relation between cost of the wall is directly proportional to the volume of the wall

C ∝ V

C = kV

Here, k = Proportionality constant

k = \frac{C}{V} = Constant

Therefore,

\frac{C_1}{V_1}=\frac{C_2}{V_2}

\frac{84000}{63}=\frac{13}{V_2}

V₂ = \frac{13\times 63}{84000}

    = 0.00975 m³

Therefore, volume of a brick is 0.00975 m³.

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