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Maths Puzzle
what is the next number?
15,28,42,58,80
Read Solution (Total 2)
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- 28-15 = 13
42-28 = 14
58-42 = 16
80-58 = 22
|13 - 14| = 1
|16 - 14| = 2
|22 - 16| = 4
next in the sub-sequence = 8
increment = 22 + 8 = 30
next in series = 80 + 30 = 110 - 13 years agoHelpfull: Yes(2) No(1)
- differences is
28-15 = 13
42-28 = 14
58-42 = 16
80-58 = 22
|14 - 13| = 1
|16 - 14| = 2
|22 - 16| = 6
so 1*2=2
2*3=6
3*4=12
increment = 22 + 12 = 34
next in series = 80 + 34 = 114 - 13 years agoHelpfull: Yes(0) No(0)
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