1 .	Rahim and his uncle differ in their ages by 30 years. After 7 years, if the sum of their ages is 66, what will be the age of the uncle ?
[ A ]    39 [ B ]    41 [ C ]    51 [ D ]    49
Answer : Option B Explanation : Let uncle's present age = x Rahim's present age = y y- x= 30 ...(i) After 7 year (x + 7) + (y+ 7) = 66 x + y + 14 = 66 x + y = 52 ...(ii) combining (i) and (ii) we get (x + y = 52) + (x - y = 30) 2x= 82 x= 41 Uncle's age is 41
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