Brain Teasers
Triples 6
Series
Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.Series
A Triple is a Series with 6 sets, each with 3 numbers apiece. The relationship between the first two numbers are the same throughout all of the sets, and the relationship between the last two numbers is also the same, however, it is different than the first relationship.Try and find the missing numbers:
2 8 4
3 27 9
4 64 16
5 ___ __
_ 216 __
_ ___ 49
2 8 4
3 27 9
4 64 16
5 ___ __
_ 216 __
_ ___ 49
Answer
2 8 43 27 9
4 64 16
5 125 25
6 216 36
7 343 49
Relationship for first two numbers: Cube it (2 cubed = 8)
Relationship for last two numbers: Divide by first number (8 divided by 2 = 4)
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