Charity quiz

[devadiva]

Which 2 letters come nexT - A,H,I,M,O,T,U.?

Which number comes next - 25,21,25,24,26,20?

Which two numbers come next in the sequence 7,10,12,13,14,15,16,17?

[bibblebub]

1 V W answered with an explanation here http://www.theanswerb.../Question1081355.html

[factor-fiction]

7,10,12,13,14,15,16,17
I have tried to find a mathematical sequence but have failed. Looking at alternate terms there is a known sequence 7, 12, 14 , 16, for which the next term is 21
http://oeis.org/A031021
But I can't find a pattern for the other terms: 10 ,13, 15, 17 , the closest being the 'hypotenuse' sequence 5, 10 ,13,15, 17,
http://oeis.org/searc...age=english&go=Search
It would only work if your sequence had an extra 5 at the beginning

I did notice that the sum of the primes in your sequence alternate: prime, non-prime, prime, non-prime, prime, non-prime, prime, non-prime, ... but that isn't enough to tell us the next two terms.

I doubt the quiz is looking for a complex maths sequence-. I tried converting them to Roman numerals and letters of the alphabet but drew a blank.
For 25,21,25,24,26,20... I thought about the number of midweek days in January, February, March etc but the figure for June messed it up

[devadiva]

When I get the correct answer I will let you know - I am baffled too.

[factor-fiction]

I made a slight typo
When I typed "I did notice that the sum of the primes ...." I meant to say to say "....the sum of the DIGITS for each term"

[devadiva]

The next few questions are from the same quiz - no one has been able to answer coppys question (about 5 below) relating to 1926 and 1956/ Give yourself a gold star and cdm for solving that question. Well done

[devadiva]

The wording of the outstanding question that I hope you are referring to is as follows:-
Which 2 numbers come next in the sequence 7,10,12,13,14,15,16,17?.

[factor-fiction]

I rthink methyl was asking for the exact wording for the 1926/1956 question (which was 1926/1958 on another thread)
"What might be named after someone born in 1926 or someone born in 1958 depending on which "

[factor-fiction]

methyl's Base 8 answer looks good- are you sure there isn't an 11 missing?



Slide 10 from the following matches it perfectly, but it's just a coincidence, I'm sure:
http://www.chemistry....tures/Lecture%201.pdf

I found this sequence which is the same but there is a 3,5 at the start
http://bitsnoop.com/l...-15-16-q28821082.html

[coppy]

hi
in answer to the question regarding the dates... it definately is 1926 and 1958 not 1956. hope this clears this up and someone can figure it out.
thanks