Advertisements
Advertisements
प्रश्न
The total number of 9 digit number which has all different digit is:
विकल्प
10!
9!
9 × 9!
10 × 10!
Advertisements
उत्तर
9 × 9!
APPEARS IN
संबंधित प्रश्न
Which of the following are true:
(2 × 3)! = 2! × 3!
In how many ways can 4 prizes be distributed among 5 students, when
(i) no student gets more than one prize?
(ii) a student may get any number of prizes?
(iii) no student gets all the prizes?
The number of arrangements of the letters of the word BHARAT taking 3 at a time is
In a room there are 12 bulbs of the same wattage, each having a separate switch. The number of ways to light the room with different amounts of illumination is
A student appears in an objective test which contain 5 multiple choice questions. Each question has four choices out of which one correct answer.
What is the maximum number of different answers can the students give?
A coin is tossed 8 times, how many different sequences containing six heads and two tails are possible?
The number of arrangements of the letters of the word BANANA in which two N's do not appear adjacently is ______.
In a certain city, all telephone numbers have six digits, the first two digits always being 41 or 42 or 46 or 62 or 64. How many telephone numbers have all six digits distinct?
If the letters of the word 'MOTHER' be permuted and all the words so formed (with or without meaning) be listed as in a dictionary, then the position of the word 'MOTHER' is ______.
8-digit numbers are formed using the digits 1, 1, 2, 2, 2, 3, 4, 4. The number of such numbers in which the odd digits do no occupy odd places is ______.
