Question

An iron beam is 9 m long. 40 cm wide and 20 cm high. If 1 cubic metre of iron weighs 50 kg, what is the weight of the beam

Answer 1

Answer:

360000

Step-by-step explanation:

Volume of iron beam = l*b*h

= 9*40*20

= 7200 m3

As we know 1 m3 of iron = 50 kg

Therefore, weight of iron bar = 7200 m3 * 50

= 360000