X, Y and Z share in the ratio of 9:6:4. Y retires. X and Z decide to share the future profits in the same ratio in which Y and Z shared. The gaining ratio will be _______.
A
3:2
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B
2:3
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C
1:1
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D
None of these
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Solution
The correct option is B2:3 Old ratio (X, Y and Z) = 9 : 6 : 4
New ratio ( X and Z) = 6 : 4
Gaining ratio = New ratio - Old ratio
X's gaining ratio = (6/10) - (9/19) = 24/190
Zs gaining ratio = (4/10) - (4/19) = 36/190
Therefore, gaining ratio of X and Z = 24 : 36 or 2 : 3