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From statement I alone, R is older than only U. S is older than P but younger than Q. But the oldest person cannot be determined. So, Statement I alone is not sufficient. From statement II alone, Q is not the oldest person. S is older than U. But the oldest person cannot be determined. So, statement II alone is not sufficient. On combining both statements, we will get, T > Q > S > P > R > U.
64 32 32 48 96 ?
...250, 279, 311, 349, 396, ?
98, 134, 198, ?, 442, 638
8, 12, 20, 32, 52, ?, 136
72, 90, 110, ?, 156, 182, 210
144, 288, 96, 384, 76.8, ?
50, 64, 80, 98, 118, ?
165 155 135 ? 65 15
...What will come in place of the question mark (?) in the following series?
2.5, 6.5, 18.5, 54.5, 162.5, 486.5, ?