2 years ago

What is the next number to follow 17, 18, 22, 31, 47, ?

Mathematics

1 answer:

Minchanka [31]2 years ago

3 0

Answer:

Step-by-step explanation:

First differences are ...

18 -17 = 1

22 -18 = 4

31 -22 = 9

47 -31 = 16

We observe that these are square numbers. The next square number is 25, so we expect the next number in sequence to be ...

47 +25 = 72

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