Find the missing number: 11, 22, 34, ?

47

Step-by-step explanation:

11+11 = 22

22+12 = 34

34+13 = 47

The answer is 47

Step-by-step explanation:

11, 22, 34

The difference in the sequence above is

11, 12

Therefore the next difference will be 13

Hence 34 + 13 = 47

The next number in the sequence is 47

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answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.