12, 15, 21, 30, 42, 57,?

More Questions from Odd Man Out and Series

• 3, 5, 9, 17, 33, 65,?
• 48, 23,?, 4.25, 1.125?
• 4, 25, 130,?, 3280
• 1, 9, 25, 49, 81,?
• 2, 15, 41, 80,132,?
• 1220, 244, ....., 9.76, 1.952,?
• 12, 15, 36,?, 480, 2415, 14508
• Find the fifteenth term of the arithmetic progression 3, 9, 15, 21, ....?
• Find the 10th term of the AP 13, 8, 3, -2,.......?
• What term of the AP 10, 8, 6, 4, .... is - 28?

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