Question

A code consists of a digit chosen from 0-9 followed by the letter of the alphabet. What is the probability that the code is 5D?

Answer 1

Answer:

2/9 is probability of 2 digits

2/26 is probability of 2 alphabet so total probability =2/9+2/26

= 70 /234

hope it helps you thanks

Answer 2

Answer:   A code consists of a digit chosen from 0-9 followed by the letter of the alphabet

To find :  probability that the code is 5D

Solution:

code consists of a digit chosen from 0-9

there are total 10 Digits from 0 to 9

Hence probability of choosing  5  will be

1/10

Followed by letter

there are 26 letters  from A to Z

Probability of choosing D = 1/26

Hence probability of 5D  = (1/10)(1/26)

= 1/260

1/260 is the probability that code is 5D

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