1) A solid sphere of diameter “x” cm is melted to make 54 solid congruent hemispheres of diameter
0.06 m, without using calculator and showing all
necessary steps find exact value of x.

2) Surface area of 100 congruent solid spheres of
diameter “y” m is same as total surface area of 300
congruent solid hemispheres of diameter 10cm ,
find the exact value of y.