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The average age of P, Q, R and S is 30 years. How old is R? I.  The sum of ages of P and R is 60 years.  II.  S is 10 years younger than R. ?->(Show Answer!)
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1. The average age of P, Q, R and S is 30 years. How old is R? I.  The sum of ages of P and R is 60 years.  II.  S is 10 years younger than R.






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  • By: guest on 01 Jun 2017 05.44 pm
    P + Q + R + S = (30 x 4)      P + Q + R + S = 120 .... (i)  I. P + R = 60 .... (ii) II. S = (R - 10) .... (iii) From (i), (ii) and (iii), we cannot find R. Correct answer is (D)
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