A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
-69, -142, ?, -580, -1164, -2332, -4668, -9340
Show answer & explanation
Correct answer: C
Explanation
-69, -142, ?, -580, -1164, -2332, -4668, -9340
-69 × 2 − 4 = -142
-142 × 2 − 4 = -288
-288 × 2 − 4 = -580
-580 × 2 − 4 = -1164
-1164 × 2 − 4 = -2332
-2332 × 2 − 4 = -4668
-4668 × 2 − 4 = -9340
Therefore, ? = -288