What is the missing number in this arrangement?
1 2 3 4 5
1 3 7 15 31
1 4 13 40 121
1 5 21 85 ???
See the solution

Category: Math Riddles

More Entries


Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Warning: Undefined array key "start" in /home/desicomments.com/public_html/riddles/wp-content/plugins/similar-posts/output_tags.php on line 1110

Leave a comment

Word Verification *