Help with this sum please?
344279
because: 9 + 6 + 2 = 17. And the number of donkeys that they want to divide is 17, the additional donkey is added only so that they don't take half a donkey and in the end it'll be left out.
811671
Everything is supposed to add up to $25 not $30. Think of it like this...\n\n$30 was paid to the manager. SO he has $30. HE took out $5 from this to give them back...so in essence he has $25 in his possession. \n\nThe three people paid $30 and were given back $3 ($1 EACH) Therefore they actually paid $30 - $3 = $27. The bellhop kept $2 which when subtracted from the $27 would give equate the $25 in the possession of the manager.\n\nThe trick in the question was adding back the $2 that the bellhop had, instead of subtracting.
604123
I figured it out... the answer is 1/(13*(2-3x))\nIf you need an explanation tell me
906083
Sum = 1 + 2 + 3 + .............. + 98 + 99 + 100\nSum = 100 + 99 + 98 + .............. + 3 + 2 + 1\n--------------------------- -----------------------------\n2 x Sum = 101 + 101 + 101 + .... + 101 + 101 + 101\nSo Sum = ½ (100 * 101)\n= 5050
796039
(5 * 5 * 5 - 5) / 5 + 5 * 5
274854
The difficult thing here is reading and writing the numbers. They must be transformed from ASCII and then the result transformed back to ASCII.I found a program that calculates the sum of 2 numbers.I hope it helps.
1032174
Observe:\nsum= 4+12+24+40+60+.....+t(n-1)+t(n)\nsum=       4+12+24+40+.....+t(n-2)+t(n-1)+t(n)\nSubtracting,\nt(n)=4+8+12+16+20+.........upto n terms\n      = n/2[2*4+(n-1)*4]\n      = n/2[4+4n]=n[2+2n]
703752
simply subtract 7 from both sides. This leave you with\n\nx<_3
30526
If you mean (4597625/540978) + 943912 + (0.69*79386), then it's 998696.83\nIf you mean 4597625/[540978 + 943912 + (0.69*79386)], then it's 2.99
965295
6 + 4(m+13) -9m\n6 + (4m + 52) - 9m\n58 - 5m
945604
1.adding-2f-7\n-6f-2f+7-7<2f-2f-9-7\n-8f<-16\ndividing by -8\nx>2\n\n2.5/8g-4>2/3g+6\nadding 4\n5/8g>2/3g+10\nmultiplying by 24\n15g>16g+240\nadding -16g\n-g>240\ndividing by -1\ng<-240\n\n3.sum incomplete\n\n4.-2 1/9d+3/5<-3 2/9d-4 2/5\n-19/9d+3/5<-29/9d-22/5\nmultiplying by45\n-95d+27<-145d-198\nadding 145d\n50d+27<-198\nadding -27\n50d<-225\ndividng by 50\nd<-5 1/2
1088739
The answer is 4100.  After adding the first 7 terms, you get a sum of  4090, then, adding another ten, your brain just automatically jumps to 5000.  Of course, if you added it on paper you would see that the answer is 4100, but doing mental math, your brain see differently.  \n\nI saw this in a logic book once, and another Yahoo Answers \n\nquestion.
952696
n + (n - 5) + (n + 6) \n3n + 1
1025264
pls specify ur question, didnt quite understand it\n\nIf there is "OR" u have to add and if it is "And" u have to multiply.
1139003
(n/(n - 3)) + (5/(2n - 6))\n(n/(n - 3)) + (5/(2(n - 3)))\nMultiply everything by 2(n - 3)\n(2n + 5)/(2n - 6)
388976
Assuming that the first of these numbers is n:\n\nn + (n+1) + (n+2)...+(n+58) = 2006\n=>59n + (1+2+3+..+58) =2006\n\nThe sum of numbers from 1 to x = x(x+1)/2\n\n=>59n + (58*59)/2 =2006\n=>59n = 295\n=> n = 5\n\n=> The numbers are: 5,6,7,....,(5+58)\n=>5,6,7,8,...,63
93533
Well, the sum of two terms thing is stupid, but oh well. (You can immediatly make it (x-5)(x-9))\nx^2-9x-5x+45=x(x-9)-5(x-9) --> (x-5)(x-9)