Find the missing number in the series: 4, 10, ?, 82, 244, 730.
Answer: B
The pattern in the series is: multiply by 3 and subtract 2.
\(4 \times 3 - 2 = 12 - 2 = 10\).
\(10 \times 3 - 2 = 30 - 2 = 28\).
\(28 \times 3 - 2 = 84 - 2 = 82\).
\(82 \times 3 - 2 = 246 - 2 = 244\).
\(244 \times 3 - 2 = 732 - 2 = 730\).
The missing number is 28.