Home
Class 12
MATHS
a. In how many ways can we form 8-digit ...

a. In how many ways can we form 8-digit numbers from the ditigs 0,1,2,3,4,5,6,7? (Repitition not allowed).
b How many of these are even?
c. How many of these are divisible by 25?
e. Find the number of integers greater than 7000 that can be formed with the digit 3, 5,7,8 and 9, no digit is being repeated.

Text Solution

Verified by Experts

The correct Answer is:
a. `7xx7!` b. `7!+18xx6!` (c) `10xx5!` d. 2661 e. 190
Promotional Banner

Similar Questions

Explore conceptually related problems

How many numbers are greater than 50000 can be formed with the digits 4 , 5 , 6 , 7 and 8 if no digit being repeated ?

How many numbers each lying between 100 and 1000 can be formed with the digits 2,3,4,0,8,9, no digit being repeated?

How many numbers greater than 100000 can be formed with the digits 3,3,4,0,3,4 ?

How many numbers of four digits greater than 2300 can be formed with the digits 0, 1, 2, 3, 4,5 and 6; no digit being repeated in any number?

How many numbers of four digits greater than 2300 can be formed with the digits 0, 1, 2, 3, 4,5 and 6; no digit being repeated in any number?

If m numer of integers greater than 7000 can be formed with the digits 3, 5, 7, 8 and 9, such that no digit is being repeated, then the value of (m)/(100) is

How many numbers greater than 40000 can be formed from the digits 2,4,5,5,7 ?

How many numbers of four digits can be formed with the digits 1,2,4,5,7 no digit being repeated?

How many numbers between 100 and 1000 can be formed with digits 1,2,3,4,5,6,7, no digit being repeated?

How many different numbers lesser than 10000 can be formed from the digits 0,1,3,6,8,7 and 9, if no digit is repeated ?