Question

a metallic cylinder of diameter 14 cm and height 49 cm is melted and cast into cubes with side 7 cm how many cubes will be formed

Answer 1

No. Of cubes = 22×7×7×49/7×7×7×7
=22
..
It means volume of cylinder divided by volume of cube

Answer 2

radius=14/2=7
h=49
v1=pie r ^2 h
= 22/7 ×7×7*49
=22×7×49 cm^3
now side is a^3
v2 = 7×7×7 cm^3
v1/v2=22