2. A four – figure pass code is to be formed from 3 letters of the alphabet and 3 digits. How many pass codes can be formed if: a. the first figure is a letter of the alphabet and the rest are digits? b. the first and last figures are digits and the figures in the middle is the letter D. c. the digits and alphabets alternate

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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2. A four - figure pass code is to be formed from 3
letters of the alphabet and 3 digits. How many
pass codes can be formed if:
a. the first figure is a letter of the alphabet and
the rest are digits?
b. the first and last figures are digits and the
figures in the middle is the letter D.
c. the digits and alphabets alternate
Transcribed Image Text:2. A four - figure pass code is to be formed from 3 letters of the alphabet and 3 digits. How many pass codes can be formed if: a. the first figure is a letter of the alphabet and the rest are digits? b. the first and last figures are digits and the figures in the middle is the letter D. c. the digits and alphabets alternate
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