6, 12, 21,?, 48

More Questions from Series Completion

• Which term of the series 5, 10, 20, 40, ..... is 1280?
• 2, 5, 9,?, 20, 27
• 2, 3, 3, 5, 10, 13,?, 43, 172, 177
• 9, 27, 31, 155, 161, 1127,?
• 2, 1, 2, 4, 4, 5, 6, 7, 8, 8, 10, 11,?
• Which of the following will not be a number of the series 1, 8, 27, 64, 125,.....?
• 13, 32, 24, 43, 35,?, 46, 65, 57, 76
• 22, 24, 28,?, 52, 84
• 3, 15,?, 63, 99, 143
• 90, 180, 12, 50, 100, 200,?, 3, 50, 4, 25, 2, 6, 30, 3

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