How many 5 digit telephone numbers can be constructed


Asked by admin @ in Math viewed by 372 People


How many 5-digit telephone numbers can be constructed using the digits 0 to 9 if each number starts with 67 and no digit appears more than once?

Answered by admin @



There are 10 digits from 0 to 9

I place after 67 can be filled in 8 ways.

II place after 67 can be filled in 7 ways.

III place after 67 can be filled in 6 ways.

∴ No of telephone numbers that can be constructed.

⇒8×7×6

⇒336


Similar Questions

How many 5 digit numbers are there in all

Asked by admin @ in Math viewed by 312 persons

How many 5 digit numbers are there in all​

How many 3 digit numbers are divisible by 5

Asked by admin @ in Math viewed by 333 persons

How many 3 digit numbers are divisible by 5 solution?

How many two digit numbers are divisible by 5

Asked by admin @ in Math viewed by 322 persons

How many two digit numbers are divisible by 5

How many three digit numbers are divisible by 5

Asked by admin @ in Math viewed by 390 persons

How many 3 digit numbers are divisible by 5 solution?

How many two digit numbers are there in all

Asked by admin @ in Math viewed by 419 persons

How many 2-digit numbers are there in all?

How many three digit numbers are there in all

Asked by admin @ in Math viewed by 342 persons

How many three digit numbers are there in which all digits are same? Please answer

How many 9 digit numbers are there in all

Asked by admin @ in Math viewed by 364 persons

How many 9 digit numbers are there in all?

How many seven digit numbers are there in all

Asked by admin @ in Math viewed by 320 persons

How many 7 digit numbers are there in all?​

How many 4 digit numbers are there in all

Asked by admin @ in Math viewed by 335 persons

How many 4 digit number are there in all?

How many 8 digit numbers are there in all

Asked by admin @ in Math viewed by 337 persons

How many 8 digit number are there in all

How many six digit numbers are there in all

Asked by admin @ in Math viewed by 361 persons

How many 6 digit number are there in all​

How many 7 digit numbers are there in all

Asked by admin @ in Math viewed by 353 persons

How many 7 digit numbers are there in all?​

How many 6 digit numbers are there in all

Asked by admin @ in Math viewed by 450 persons

How many 6 digit number are there in all​

How many even 4 digit whole numbers are there

Asked by admin @ in Math viewed by 399 persons

How many even 4 digit whole numbers are there?​

How many three digit numbers are divisible by 12

Asked by admin @ in Math viewed by 395 persons

How many 3 digit numbers are divisible 12​

Most viewed questions in Math


What is the value of x in the expression

Asked by admin @ in Math viewed by 15157 persons


Shubham is facing south and moves 30 km

Asked by admin @ in Math viewed by 12987 persons


Prachi excellence in mathematics class 7 solutions pdf free download

Asked by admin @ in Math viewed by 12042 persons



Oxford new enjoying mathematics class 7 solutions chapter 1

Asked by admin @ in Math viewed by 11520 persons


Survey of various types of bank accounts icse project

Asked by admin @ in Math viewed by 11509 persons


The town of p is located at point x

Asked by admin @ in Math viewed by 11359 persons



A clock gains 4 minutes after every 4 minutes

Asked by admin @ in Math viewed by 10170 persons


Running a tuck shop or canteen maths project pdf

Asked by admin @ in Math viewed by 9384 persons


Paul is sixteenth from the front of the row

Asked by admin @ in Math viewed by 9352 persons



The average weight of 20 teachers is 80 kg

Asked by admin @ in Math viewed by 7524 persons


The number 567 xy is completely divisible by 30

Asked by admin @ in Math viewed by 7399 persons


In a row of friends tiya occupies fifteenth place

Asked by admin @ in Math viewed by 7208 persons



What would $ mean if fat is coded as

Asked by admin @ in Math viewed by 5275 persons


Consider a 3 digit integer x with distinct digits

Asked by admin @ in Math viewed by 4804 persons


Rahul went to his mother's mother in law

Asked by admin @ in Math viewed by 4179 persons