# Search by Topic

#### Resources tagged with Combinations similar to Teams:

Filter by: Content type:
Stage:
Challenge level:

### There are 12 results

Broad Topics > Decision Mathematics and Combinatorics > Combinations

### Teams

##### Stage: 5 Challenge Level:

Two brothers belong to a club with 10 members. Four are selected for a match. Find the probability that both brothers are selected.

### Chances Are

##### Stage: 4 Challenge Level:

Which of these games would you play to give yourself the best possible chance of winning a prize?

### Coin Tossing Games

##### Stage: 4 Challenge Level:

You and I play a game involving successive throws of a fair coin. Suppose I pick HH and you pick TH. The coin is thrown repeatedly until we see either two heads in a row (I win) or a tail followed by. . . .

### Scratch Cards

##### Stage: 4 Challenge Level:

To win on a scratch card you have to uncover three numbers that add up to more than fifteen. What is the probability of winning a prize?

### Spectrometry Detective

##### Stage: 5 Challenge Level:

From the atomic masses recorded in a mass spectrometry analysis can you deduce the possible form of these compounds?

### Last Biscuit

##### Stage: 3 and 4 Challenge Level:

A game that demands a logical approach using systematic working to deduce a winning strategy

### Trominoes

##### Stage: 3 and 4 Challenge Level:

Can all but one square of an 8 by 8 Chessboard be covered by Trominoes?

### The Olympic Torch Tour

##### Stage: 4 Challenge Level:

Imagine you had to plan the tour for the Olympic Torch. Is there an efficient way of choosing the shortest possible route?

### Factoring a Million

##### Stage: 4 Challenge Level:

In how many ways can the number 1 000 000 be expressed as the product of three positive integers?

### The Secret World of Codes and Code Breaking

##### Stage: 2, 3 and 4

When you think of spies and secret agents, you probably wouldn’t think of mathematics. Some of the most famous code breakers in history have been mathematicians.