Q: How many 6-digits telephone numbers can have one or more repeated digits?

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

5 digit telephone numbers having at least one of their digits repeated is = total possible 5 digit telephone numbers - 5 digit telephone numbers without any digit being repeated. =(10*10*10*10*10)-(10*9*8*7*6) =100000-30240 =69760

6561

500

7

It is 120 if the digits cannot be repeated.

Related questions

5 digit telephone numbers having at least one of their digits repeated is = total possible 5 digit telephone numbers - 5 digit telephone numbers without any digit being repeated. =(10*10*10*10*10)-(10*9*8*7*6) =100000-30240 =69760

98,764

6561

It is possible to create a 3-digit number, without repeated digits so the probability is 1.

There are 5*4*3 = 60 such numbers.

757

With repeated digits, 43 = 64 Without repeated digits, 4*3*2 = 24

24

500

7

9x9x8x7x6x5x4x3 =1632960

987,653