Play Two Songs At Once

If in a chess tournament each contestant plays once against each of the other and in all 45 games are played, then the number of participants, is

In a class of 100 students, 60 play cricket, 50 play Hockey and 30 play both. Then the number of students who play only one of the two game is

In the next world cup of cricket there will be 12 teams, divided equally in two groups. Teams of each group will play a match against each other. From each group 3 top teams will qualify for the next round.In this round each team will play against other once. Each of the four top teams of this round will play amatch against the other three. Two top teams of this round will go to the final round, where they will playthe best of three matches. The minimum number of matches in the next world cup will be

Students who are participating in Songs from class VIII are what percent more or less than students who are participating is play from class IX.

Your friend is playing a song on a piano. Whenever your friend hits a certain key, the lamp on top of the piano rattles. Explain why the lamp rattles.

Finance Commission is constituted: a) every year b) once in two years c) once in four years d) once in five years