The basketball team has won 21 games and lost 15 games . How many future games can they lose and keep their winning percentage above 0.500?

Answer 1

If they win no more games, and so far they won 21, they have to lose less than 21 in total.
So far they lost 15 so they have to lose less than 6 games to be OVER .500

or

21 : (x+15) = 1 : 1
x+15 = 21
x = 6 , to have exactly .500
but they wanted to be over 500, they have to lose less than 6