In the sequence of numbers 5, 8, 15, 20, 29, 40, 53, one number is wrong. The wrong number is :
In the sequence of numbers 5, 8, 15, 20, 29, 40, 53, one number is wrong. The wrong number is :
[A]40
[B]20
[C]15
[D]29
15
$latex 5\xrightarrow{+3}8\xrightarrow{+5}(13)15\xrightarrow{+7}20\xrightarrow{+9}29\xrightarrow{+11}40\xrightarrow{+13}53$
∴ Incorrect No. = 15
Hence option [C] is the right answer.