Ramesan bought a wooden plank to make a table. It is 120 centimetres long, 80 centimetres broad and 2 centimetres thick. What is its volume? The price of the plank is 760 rupees. What is the price of 1 cubic centimetres of wood?

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Solution

Length of the rectangular wooden plank = 120 cm

Breadth of the rectangular wooden plank = 80 cm

Height of the rectangular wooden plank = 2 cm

Volume of the rectangular wooden plank = Length × Breadth × Height

= 120 cm × 80 cm × 2 cm

= 19200 cm³

Price of the wooden plank = Rs.760

∴ Price of 19200 cm³ of wood = Rs.760

∴ Price of 1 cm³ of wood = Rs. = Rs.0.0396

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