Looking at the series: 7, 8, 18, 57, ?, 1165
Let me examine the relationship between consecutive terms:
7×1+1=8
8×2+2=18
18×3+3=57
The pattern shows each term is obtained by multiplying the previous term by an increasing multiplier (1, 2, 3, ...) and then adding that same multiplier.
Continuing the pattern:
57×4+4=228+4=232
Confirming with the next term:
232×5+5=1160+5=1165 ✓
This matches the given term in the series.
Therefore, the missing number is 232.
The correct answer is Option 2.