A lottery exists where balls numbered 1 to 25 are placed in an umn. To win, you must match the six balls chosen in the correct order. How many possible outcomes are there for this game?
The number of possible outcomes is
(Simplify your answer.)

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.