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From quantity I, Ratio of the ages of A, B and C = 9:3:5 5x + 20 = 9x 4x = 20 x = 5 years D’s age = (3 * 5) * 180/100 = 27 years Average ages of A and D = (27 + 45)/2 = 36 years From quantity II, A – B = 12 C – B = 10 B = C – 10 A = 12 + C – 10 = C + 2 C = D A + B + C + D = 30 * 4 = 120 C + 2 + C – 10 + C + C = 120 4C = 128 C = 32 = D D + 4 = 36 Quantity I = Quantity II
Which of the following is not correct regarding S?
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