What is the term for winning all four Grand Slam tournaments in a single calendar year?

Who was the first male player to win all four Grand Slam titles in one year?

Which female tennis player has won the most Grand Slam singles titles?

Four matches are to be played in a chess tournament. In how many ways can result be decided?

In a tournament, a team has played 40 matches so far and won 30%30% of them. If they win 60%60% of the remaining matches, their overall win percentage will be 50%50%. Suppose they win 90%90% of the remaining matches, then the total number of matches won by the team in the tournament will be.

The Australian Open tennis tournament consists of 7 rounds of matches: Rounds 1, 2, 3, 4, the quarter-finals, the semi-finals and the finals. Half of the players (the losers of their matches) are removed after each round, so that there are only 2 players remaining in the final.(a) Starting at the final and working back through each round, write the number of players playing in each round as a number in index form.NOTE: INDICES ANSWERS ARE TO BE TYPED AS FOLLOWS:   5^3 for (b) Evaluate how many players are there at the start of the championship