13. The total number of four digit numbers are ____.
a) 9000 b) 8000 c) 9999 d) 7989
Answers
Answered by
2
Answer:
9000
Step-by-step explanation:
The total number of 4 digit numbers is
9999-999=9000
hope you got it.
Answered by
0
Answer:
option a is correct
Step-by-step explanation:
1000,1001,1002......…9999
a = 1000
d = 1
an = 9999
an = a+(n-1)d
9999= 1000+(n-1)×1
9999-1000 = n-1
8999 = n-1
8999+1 = n
9000 = n
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