Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: · Marks: · Difficulty:
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
(a)2 marbles from A to B and 1 from C to B
(b)3 marbles from B to C
(c)4 marbles from C to B
(d)5 marbles from C to A
Answer
Answer (as printed): D
Explanation
When marbles are shared in the ratio 1 : 2 : 3 1 2 A's share = 60 × = 10 ; B's share = 60 × = 20 ; 6 6 3 C's share = 60 × = 30. 6 When marbles are shared in the ratio 3 : 4 : 5 3 4 A's share = 60 × = 15 ; B's share = 60 × = 20 ; 12 12 5 C's share = 60 × = 25. 12 Clearly, 5 marbles have been transferred from C to A.
Explanation as extracted from the printed page; notation may be imperfect.