Subject :IMO Class : Class 9
A spherical ball of lead, 3 cm in diameter is melted and recast into three spherical balls. The diameter of two of these are
1.5 cm and 2 cm respectively. The diameter of the third ball is ______.
A 2.66 cm
B 2.5 cm
C 3 cm
D 3.5 cm
please give me a solution...
Ans 1:
Class : Class 1
Ans 2:
Class : Class 9
4/3π{3}^3=4/3π{1.5^3+2^3+x^3}
27=3.375+8+x^3
15.625=x^3
X=2.5
Correct option is B
Ans 3:
Class : Class 7
C
Ans 4:
Class : Class 9
The answer is 2.5
Ans 5:
Class : Class 1