Mathematics · Ratio and Proportion
A, B and C are boxes containing marbles in the ratio 2 : 3 : 4. The total number of marbles across all boxes is 360. This ratio can be changed to 3 : 8 : 7 by which of the following operations?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By transferring 30 marbles from A to B and 30 marbles from C to B.
- 2By transferring 20 marbles from A to B and 10 marbles from C to B.
- 3By transferring 40 marbles from A to B and 20 marbles from C to B.
- 4By transferring 20 marbles from A to B and 20 marbles from C to B.✓
Correct answer
By transferring 20 marbles from A to B and 20 marbles from C to B.
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