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2(x+4) = 64 (given) x + 4 = 6 ∴ x = 2 Now, 6(x + 2) = 6(2+2) = 64 = 1296
31 40 51 64 79 ?
16, 9, ?, 114.25, 750.625, 6396.3125
17 18 14 ? 7 32
...What will come in place of the question mark (?) in the following series?
3.5, 9.5, 27.5, 81.5, 243.5, 729.5, ?
3 2 3 6 14 ? 115.5
7, 7, 21, 105, 735, ?
55, 71, 119, 199, 311, ?
124, 180, 108, 198, ?, 220
5 6 15 40 89 170 ?
...150, 158, 131, 195, 70, ?
