The number of 5 digit telephone numbers having at least one of their digits repeated is? (0 can be the starting digit of the number)

30240

No worries! We‘ve got your back. Try BYJU‘S free classes today!

10500

No worries! We‘ve got your back. Try BYJU‘S free classes today!

45600

No worries! We‘ve got your back. Try BYJU‘S free classes today!

69760

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

62660

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D 69760
Total number of 5 digit telephone numbers which can be formed using digits 0,1,2…9 is 10⁵

Number of 5 digit numbers having not even a single digit repeated is ¹⁰P₅= 30240

Required number of telephone numbers = 10⁵-30240 = 69760

Suggest Corrections

Similar questions

5

The number of five-digit telephone nubmers having at least one of their digits repeated is

Join BYJU'S Learning Program