Question

the mobile no. telecom company begin with digit 932 and don't end in 9. how many number can it provides at most? ​

Answer 1

Answer: 9000000

Step-by-step explanation:there are 10 digits in mobile number

the mobile number telecom company begins with digits 932 and don't end 9

so possible mobile number is

932xxxxxxy

there are possible 10 digits for the value of x = 0,1,2,3,4,5,6,7,8,9

don't end with 9 so value of y =0,1,2,3,4,5,6,7,8 here 9 possible digits,

total at most mobile numbers provided by telecom company

= 10 * 10 * 10 * 10 * 10 * 10 * 9

= 9000000

Answer 2

Answer:

the mobile no. telecom company begin with digit 932 and don't end in 9.  9000000 number can be provides at most.

Step-by-step explanation:

Mobile number is of digits,

First three digits are fixed 932

Digits from 4th to 9th (6 digits can be any digit from  1 to 9 ( 10 digits)

Last digit (10th digit ) can be any digit from 0 to 8  ( 9 digits)  (as it can not end with 9 )

So total possible numbers

= 10⁶ × 9

= 9000000