Q5 of 24 Page 145

A solid cubical box of fine wood costs ₹ 256 at the rate ₹ 500/m3. Find its volume and length of each side.

Let the side of a cubical box = ‘a’ m

Therefore, Volume of a cubical box = a3 m3


Now, Cost of 1 m3 = ₹500


Therefore, Cost of a3 m3 = ₹256








a = 0.8 m or 80 cm


Length of each side = 0.8 m


volume of a cubical box = a3 = (0.8)3 = 0.512 m3


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