Math, asked by shilpiaudh123, 2 months ago

how many 4 digit numbers are there? show your calculations

Answers

Answered by usernametaken8

3

Answer:

9000

Step-by-step explanation:

1000, 1001, 1002, 1003, .... 9999

As they are all in AP

Therefore,

1000 + (n-1)×1 = 9999

=> n - 1 = 8999

=> n = 9000

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