Question
Find the number of arrangements of all the letters of the word LANCERS that satisfy each of the following conditions. The letters R and S
Find the number of arrangements of all the letters of the word LANCERS that satisfy each of the following conditions.
- The letters R and S must be together.
- The letter R and S are not together.
You are setting up a system of programming codes for a universal TV Remote. Each code will have 5 digits and cannot include a 0 or repeat any digits. How many codes:
a) begin with an odd number?
b) begin and end with an even number?
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Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook
Authors: Dean Chalmers, Julian Gilbey
1st Edition
1108407307, 978-1108407304
