Question

A metal block, 90 cm long, 72 cm wide and 50 cm
high is melted to form cubes of side 30 cm each
Find the number of cubes formed.​

Answer 1

We do this question by a formula
Number of cubes * volume of cubes = volume of metal block
Number of cubes*30^3 = 90*72*30
Number of cubes = 90*72*30/30^3
Number of cubes = 12

Answer 2

Answer:

90 cubes

Step-by-step explanation:

LETS START THE ANSWER

Volume of cuboid (or block)=l x b x h

Therefore volume = 90 cm x 72cm x 50cm

= 324000cm cube

Volume of 1 cube = 6a square

= 6 x 30 square

= 6 x 900

= 5400cm square