Question

Find the number of 4 digit numbers less than 2000 that can be formed using
the digits 1. 2. 3. and 4. if numbers can be repeated?​

Answer 1

Answer:

64

Step-by-step explanation:

_ _ _ _

less than 2000...So, first digit must be 1

1 _ _ _

as numbers can be repeated

you can fill remaining places by 1,2,3,4

total possibilities=1*4*4*4=64

Hope this helps you

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