A, B, and C are boxes containing marbles in the ratio 1 : 2 : 3. Total number of marbles is 60. The above ratio can be changed to 3 : 4 : 5 by transferring-

• ক 4 marbles from B to C.
• খ 2 marbles from A to B.
• গ 3 marbles from A to C.
• ঘ 5 marbles from C to A. ✅ সঠিক উত্তর