An n-digit number is a positive number w...

An n-digit number is a positive number with exactly `n` Nine hundred distinct n-digit numbers are to be formed using only the three digits `2, 5, and 7.` The smallest value of `n` for which this is possible is (a) `6` (b) `7` (c) `8` (d) `9`

Text Solution

AI Generated Solution

Topper's Solved these Questions

LOGARITHM
CENGAGE ENGLISH|Exercise All Questions|173 Videos
PROBABILITY
CENGAGE ENGLISH|Exercise All Questions|1 Videos

Similar Questions

Explore conceptually related problems

An n-digit number is a positive number with exactly n digits. Nine hundred distinct n-digit numbers are to be formed using only the three digits 2, 5, and 7. The smallest value of n for which this is possible is a. 6 b. 7 c. 8 d. 9

Number of 5-digit numbers can be formed using the digits 2,4,7,9,0 if no digit is repeated :

A nine - digit number is formed using the digits 1, 2, 3, 5 and 7. The probability that the product of all digits is always 1920 is

How many 6-digit numbers can be formed from the digits 0,3,5,7 and 9 which are divisible by 10 and no digits is repeated?

The number of 6 digits numbers that can be formed using the digits 0, 1, 2, 5, 7 and 9 which are divisible by 11 and no digit is repeated is

How many four-digit numbers can be formed by using the digits 1, 2, 3, 4, 5, 6, 7 if at least one digit is repeated.

The number of 4 digit numbers that can be formed with the digits 2,3,4,7 and using each digit only once is

The number of 4 digit numbers that can be made using exactly two digits out of 1,2,3,4,5,6 and 7

The number of different four - digit numbers that can be formed with the digits 2, 3, 4, 7 and using each digit only once is

CENGAGE ENGLISH-PERMUTATIONS AND COMBINATIONS-All Questions

There are 20 books on Algebra and Calculus in one library. For the ...
Text Solution
|
Let Pn denotes the number of ways in which three people can be selecte...
Text Solution
|
An n-digit number is a positive number with exactly n Nine hundred dis...
Text Solution
|
There are 2 women participating in a chess tournament. Every partic...
Text Solution
|
Five balls of different color are to be placed in three boxes of dif...
Text Solution
|
A seven-digit number without repetition and divisible by 9 is to be fo...
Text Solution
|
n is selected from the set {1, 2, 3,.............,100} and the number ...
Text Solution
|
Messages are conveyed by arranging four white, one blue, and three ...
Text Solution
|
20 persons are sitting in a particular arrangement around a circula...
Text Solution
|
The number of three digit numbers of the form xyz such that x lt y , z...
Text Solution
|
A is a set containing n different elements. A subset P of A is chosen....
Text Solution
|
Numbers greater than 1000 but not greater than 4000 which can be fo...
Text Solution
|
Find 5C2
Text Solution
|
The number less than 1000 that can be formed using the digits 0, 1,...
Text Solution
|
A variable name in certain computer language must be either an alph...
Text Solution
|
The number of five-digit numbers that contain 7 exactly once is a. ...
Text Solution
|
The total number of flags with three horizontal strips in order, whi...
Text Solution
|
Let A be a set of n(geq3) distance elements. The number of triplets...
Text Solution
|
The number of possible outcomes in a throw of n ordinary dice in wh...
Text Solution
|
In a room there are 12 bulbs of the same wattage, each having separate...
Text Solution
|