Question
640Â Â Â Â 322Â Â Â Â Â 164Â Â Â Â Â Â 86Â Â Â Â Â
48Â Â Â Â Â ? Find the missing term (?) in the following number series.Solution
(640 + 4) ÷ 2 = 322 (322 + 6) ÷ 2 = 164 (164 + 8) ÷ 2 = 86 (86 + 10) ÷ 2 = 48 (48 + 12) ÷ 2 = 30
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