4.A football team won 10 matches out of the total number of matches they played. If their win percentage was 40, then how many matches did they play in all?

Win percentage is 40 i.e. 40 matches are won by the team out of 100 matches
So, the team will win 1 match out of \(\frac { 100 }{ 40 }\) matches

And similarly, the team will win 10 matches out of \(\frac { 100 }{ 40 } \times 10 = 25\) matches

Hence, the total number of matches played by the team = 25