Topic : The Fundamental Principle of Counting
(Please Answer Properly - Read All and Give Solutions to each item)
I'll report a nonsense and incomplete answer

How many 3-digit numbers can be formed from 1, 2, 3, and 4 if
a. no repetition is allowed?
b. repetition is allowed?
c. all numbers formed are less than 400 and no repetition is
allowed?
d. all numbers formed are greater than 200 and repetition is
allowed?
e. all numbers formed are less than 200 and repetition is
allowed?

(Please Answer Properly - Read All and Give Solutions to each item)
I'll report a nonsense and incomplete answer

Question

Answered

Sagot :

Lercheviz Lercheviz · Answer 1

Answer:

a. no repitition is allowed?

123,234,341,412

b. repetition is allowed?

123,124,132,134,142,143,213,214,231,234,241,243,312,314,321,324,341,342,412,413,421,423,431,432

c.all numbers formed are less than 400 and no repitition is allowed.

123,234,341

d. all numbers formed are greater than 200 and repitition is allowed.

213,214,231,234,241,243,312,314,321,324,341,342,412,413,421,423,431,432

e.all numbers formed less than 200 and repitition is allowed?

123,124,132,134,142,143

Step-by-step explanation:

hope it helps