Conan wrote down 10 consecutive positive integers. If the sum of the 5 smallest positive integers is A, then waht is the sum of the 5 largest positive integers in terms of A?
+1253 Let's call the smallest number x
So x+x+1+x+2+x+3+x+4 = 5x+10 = A
Then x+5+x+6+x+7+x+8+x+9 = 5x+35 = A+25
You are very welcome!
:P
