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1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = 210

Q: What is 1 plus 2 plus 3 plus 4 plus 5 plus 6 plus 7 plus 8 plus 9 plus 10 plus 11 plus 12 plus 13 plus 14 plus 15 plus 16 plus 17 plus 18 plus 19 plus 20?

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(4*10+11+2*12+13+2*14)/10 = 11.6

It is (8+6+11+12+13)/5 = 10

10 7 11 12 9 13 14 11 15 16 13 17 18 15 19 20...

7, 10, 11, 12, 13, 14, 17

Plus 12 plus -13 plus plus 1 can be rewritten in mathematical terms as: 12+(-13)+1 or 12-13+1 12-13+1 =-1+1 =0

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3 + 11 + 11 + 11 + 12 + 13 + 15 + 15 + 16 + 17 + 19 = 143

There are three modes: 11, 12 and 13

7777777777888888899,999999-,10 10, 10, 10 10,10 10,10 11, 11, 11, 11, 11 11, 11 11, 12 12, 12 12, 12 12, 12 10, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 15, 15, 15, 16, 16, 16, 17, 18, 19,20

It is: 3/11 plus 10/11 = 13/11 or 1 and 2/11

(4*10+11+2*12+13+2*14)/10 = 11.6

2(1+2+3+4+5+6+7+8+9+10+11+12+13+14) is the same as the question of the next part is supposed to be 14 plus 14. the answer is simply 1+2 and so on until 14, and then multiply by 2. The answer is 210.

he was about 11 or 12

It is (8+6+11+12+13)/5 = 10

13 13 # of poker hands with 3 clubs & 2 heards = ( ) ( ) 3 2 = (13!)( 13!) / (10!*3!*11!*2) = (13!)( 13!) / (10!*11!*12) = (13!)( 13!) / (10!*12!) = 13 * 13* 12 * 11 = 22308 #

11 plus 12 plus 13 can satisfy this

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that does not make any sense