Question

A new sports arena is designing its seating. Each seat will be identified by a unique combination starting with a letter, followed by a number, and ending with a colour. The design will use the following:

• all letters from ‘A’ to ‘R’ inclusive.

• all numbers from 1 to 145 inclusive.

• all of the following colours: red, orange, yellow, green, blue, indigo, and violet.

(a) What is the total seating capacity of this arena?

(b) You just purchased the first season ticket and your seat is randomly selected. What is the probability that your designated seat has the letter ‘C’ or the colour Blue in it?

Answer 1