Posted by steve on Tuesday, May 24, 2011 at 9:06pm.
A telecommunications cable contains 8 wires that are colour coded. there are 8 different colours. how many different ways could these colours be arranged.
A. 40 320
B. 5 040
C. 256
D. 224

math  MathMate, Tuesday, May 24, 2011 at 9:20pm
Assume they are position dependent.
The first wire has 8 ways, the second has 7, so there are 56 ways. Continue this way down to the last wire (1 way). Multiply them together and see that the product matches one of the answers.
Answer This Question
Related Questions
 probability  2.The daily production from a car factory=3 different modelsA,B,C...
 MATH HELP HELP HELP HELP HELP  (a)Sarah wants to make a bracelet. She needs ...
 MATH HELP HELP HELP HELP HELP  (a)Sarah wants to make a bracelet. She needs ...
 math discrete  (a)Sarah wants to make a bracelet. She needs some beads and ...
 Math  There is exactly the same number of lollies in 10 different colours in a ...
 chemistry  What pairs of ions produce similar colours in the flame test? Use ...
 Level 5 Math  A bag contains 300 marbles, each of the same size, but in six ...
 Stats  A store carries 4 styles of denim jeans. For each style there are 5 ...
 Basic Mathematics  A bag contains 2 red balls, 3 blue balls and 5 green balls. ...
 art  explain harmonious colors and how they are related on the color wheel ...
More Related Questions