Question

Choose the correct volume of a cubical box if the cost of painting it's outer surface is RS 1440 at the rate of RS 15 per square.m
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Answer 1

Answer:

Let edge of the cube = 'x' m.

Total surface area of cube = 1440/15 = 96 m^2.

so, 6a^2 = 96

a^2 =:16

=> a = 4 metre.

So volume OF cube = a^3 = 4^3 = 64 m^3.

Answer 2

Step-by-step explanation

64m³ is ur answer........