Question

There are three boxes – P, Q and R, 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:

विकल्प

• 2 marbles from P to Q and 1 from R to Q

• 3 marbles from Q to R

• 4 marbles from R to Q

• 5 marbles from R to P

Answer 1

5 marbles from R to P

Explanation:

The initial counts are 10, 20 and 30. Transferring 5 from R to P gives 15, 20 and 25, which reduce to 3 : 4 : 5. The other transfers do not produce the required ratio.