Find the missing number from the following given options.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 148
Read the numbers clockwise, starting from 5 at the top: 5, 8, 16, 25, 49, 76, ?, 229. The differences between them follow two patterns, one in every other gap: 3, 9, 27, 81 (each three times the last) and 8, 24, 72 (also each three times the last).
\(5+3=8\)
\(8+8=16\)
\(16+9=25\)
\(25+24=49\)
\(49+27=76\)
\(76+72=148\)
\(148+81=229\), which matches the last number
