Question

if 50 cm cube of metal bar weights 5 kg find the weight of the bar dimensions of 14 cm by 18 cm by 20 CM formed using the same metal​

Answer 1

Step-by-step explanation:

volume of cuboid = l×b×h

volume of cuboid = 14×18×20

volume of cuboid = 5040 cm^3

given: 50 cm^3 = 5kg

therefore 1 cm^3 = 1/10 kg

therefore 5040 cm^3 = 5040×1/10 kg

weight of the cuboid = 504 kg

Answer 2

Step-by-step explanation:

given: 50cm³ = 5kg

1cm³ = 1/10 kg

now weight of the bar =

volume of bar x weight of 1cm³ in kg

volume of a cuboid = lbh as metal bar is a cuboid

14 x 18 x 20 x weight of 1cm³ in kg

5040 x 1/10 kg

504 kg