Brain Teasers
7, 10, 11, 13....
Series
Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.Series
What would be the next number in this series?
7, 10, 11, 13, 17, 18, ?
7, 10, 11, 13, 17, 18, ?
Hint
Go back to a squareAnswer
20. Each new number is gained by adding the difference between n and the closest smaller perfect square to n.7-4=3...7+3=10
10-9=1...10+1=11
11-9=2...11+2=13
13-9=4...13+4=17
17-16=1...17+1=18
18-16=2...18+2=20
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Comments
Very interesting, but not at all as difficult as i first believed it would be . Still, it was very nice and well thought out.
I would have never got that, good teaser though
Words...give me words!!! As I've stated many times, math and I just don't see eye to eye. Good teaser even though I didn't even get close to the answer. Zipped right by me!
good one! i got it right away though...but it was still good!
Thanks for the comments, guys, this is my first teaser here! I thought I put this in Series, but I must've goofed, oops!
Don't worry, froggygg, my next teaser is a word one!
Don't worry, froggygg, my next teaser is a word one!
ahem cool!! lol
Nicley done, i was 4 numbers too high. good job
For whoever is changing this teaser's category to series, thanks!
I liked it, but I needed the hint to solve it.
huh?
I got it by adding 1, 2, 3, starting with 3.
(7+3=10, 10+1=11, 11+2=13)
Intresting teaser.
(7+3=10, 10+1=11, 11+2=13)
Intresting teaser.
1-2-3-4, sorry about the one above.
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