Question

(d) none of these
(c) 8000
5. How many 4-digit numbers are there?
(a) 8999
(b) 9000
6. How many 7-digit numbers are there?
(a) 8999999
(b) 9000000
7. How many 8-digit numbers are there?
(a) 99999999 (b) 89999999
(c) 1000000
(d) none of these
(c) 90000000
(d) none of these​

Answer 1

Answer:

konsa question ka answer lagega

Answer 2

Answer:

5. (b) 9000

The largest four-digit number = 9999

The smallest four-digit number = 1000

Total number of all four-digit numbers = (9999 − 1000) + 1 =8999+1=9000

6.  (b)  9000000

7. (c) 1000000                                

Hope it helps :)