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