Question

Find the volume of aluminium required to make an open box whose outer dimension are 36 cm, 25 cm ,16.5 cm, the box being 1.5 CM thick throughout. if 1cmcube of aluminium weight 4.5 gram find the weight of empty box in kilogram

Answer 1

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Answer 2

Answer:

22.95 kg

Step-by-step explanation:

Assuming box is: 36cm h x 25cm w x 16.5cm deep

Total area:

36x25x2=1800

36x16.5x2 = 1188

25x16.5 = 412.5

Total: 3400.5 sq cm

Volume = 3400.5 x 1.5 = 5100.75 cu cm

Weight = 5100.75 x 4.5 = 22,953.375 grams = 22.95 kg (1000g = 1 kg)