Question

A beam 11m long, 40 cm wide and 30 cm deep is made of wood which weighs 25 kg per m³. Find the weight of the beam.​

Answer 1

Answer:

45 kg will be in the day of the day

Answer 2

Length of cuboidal beam = 11m

Breadth of cuboidal beam = 40 cm or 0.4 m            [∵ 1 cm = 1/100 m]

Height of cuboidal beam = 30 cm   or 0.3 m             [∵ 1 cm = 1/100 m]

∵ Volume of cuboid = Length × Breadth × Height

Volume of cuboidal beam = 11m × 0.4m × 0.3m

                                            = 1.32 m³

Given that 1 m³ weigh = 25 kg

∴ Weight of 1.32 m³ = 1.32 × 25

                                 = 33 kg

Hence weight of given cuboidal iron beam = 33 kg

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