A website Maths Puzzle Numerical Ability

Complete the following series:
1, 4, 5, 6, 7, 9, 11, __?

Read Solution (Total 1)

15 is the answer.
as 6+7=13
5+9=14
4+11=15
1+?=16
9 years agoHelpfull: Yes(0) No(1)

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