Pine boards measuring 8 m X 20 cm X 2.5 cm, loaded into a carriage, weigh 12 tons. Determine the number of boards in the carriage.
| December 9, 2020 | education
Find the volume of one board
V = x * y * z = 8 * 0.2 * 0.025 = 0.04m ^ 3
Find the mass of one board
m1 = q * V = 400 * 0.04 = 16 kg
And let’s find the number of boards:
N = m / m1 = 12,000/16 = 750 pieces
Answer: 750 boards
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