Question

Give answer fast , its argent...

Answer 1

let the radius of biggest sphere ball is R

then , A.t.Q

4/3piR^3= 4/3pi(1.5)^3+ 4/3pi (2)^3+ 4/3pir^3

(3)^3= (1.5)^3 + (2)^3 + (r)^3

27= 27/8 +8 +r^3

27 = 91/8 + r^3

27-91/8 = r^3

125/8 = r^3

or r= 5/2

r = 2.5cm