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### Question Asked by a Student from EXXAMM.com Team

** Q 2386480377. ** A spherical ball which is 7 cm in diameter is melted into 3 spherical balls. The diameter of two balls so formed is 3 cm and 4 cm.

I. Find the diameter of the 3rd ball.

II. Find the sum of the radius of the three balls.

**IBPS-PO 2017 Mock Mains **