UPSC CAPF AC 2014 Paper

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Question : 118 of 125
 
Marks: +1, -0
In a family, the age of father , mother, son and grandson are A, B,C and D, respectively.
Given that, A-B=3, B+C=78, C + D = 33 and the average age of the family as 34 yr, then B - C is
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