Please enter the missing figure: 13, 57, 911, 1315, 1719

A. 2123
B. 1879
C. 3002
D. 5004
E. 1784

• they are all odd numbers in order,look at the problem this way: 1,3,5,7,9,11,13,15,17,19, the next odd number would be 21 and then 23. since they are would be in groups of two (13,57),three(911), and four (1315,1719),putting 21 and 23 together would be the answer (2123}, the next two odd numbers together 2527,2931,3335, and so on.
• 12 years agoHelpfull: Yes(5) No(1)
• +4 to all ans A
• 4 years agoHelpfull: Yes(0) No(0)