For Charity, five IPL teams were competing in cricket where they face each other exactly once. After the tournament, the following is the point table.

DareDevils 6

SuperKings 5

Royals 4

Sunrisers 2

Riders ?

How many points did Riders end up with?

3

Possible matches

DareDevils vs SuperKings

DareDevils vs Royals

DareDevils vs Sunrisers

DareDevils vs Riders

SuperKings vs Royals

SuperKings vs Sunrisers

SuperKings vs Riders

Royals vs Sunrisers

Royals vs Riders

Sunrisers vs Riders

Therefore there is a total of 10 matches. After every match, 2 points were distributed between two teams as:

Case1: One of team wins:

Winning team will get 2 points.

Case2: Match ends up in a draw

Both teams will share a point.

Therefore 10*2 = 20 points should be the sum of all team points.

6 + 5 + 4 + 2 + ? =20

? = 3