Interested to Buy Any Domain ? << Click Here >> for more details...
If you were to dial any 7 digits on a telephone in random
order, what is the probability that you will dial your own
phone number?
Assume that your telephone number is 7-digits.
- 6 Answers
- 18637 Views
- I also Faced
- E-Mail Answers
Answer Posted / guest
1 in 10,000,000
There are 10 digits i.e. 0-9. First digit can be dialed in
10 ways. Second digit can be dialed in 10 ways. Third digit
can be dialed in 10 ways. And so on.....
Thus, 7-digit can be dialed in 10*10*10*10*10*10*10
(=10,000,000) ways. And, you have just one telephone number.
Hence, the possibility that you will dial your own number is
1 in 10,000,000.
Note that 0123456 may not be a valid 7-digit telephone
number. But while dialing in random order, that is one of
the possible 7-digit number which you may dial.
| Is This Answer Correct ? | 35 Yes | 1 No |
Post New Answer View All Answers
foot is related to man in the same way hoof is related to...........
sir i need generalKnowledge previous questions for rrb secunderabad goods guard exam
In a soap company a soap is manufactured with 11 parts. For making one soap you will get 1 part as crap. At the end of the day u have 251 such scraps. From that how many soaps can be manufactured?
Three members are hunting in a forest.While crossing a streem cartridges of two of them gets wetted up.Then the third person decides his cartidges equally. After 4 shots of each person, total cartridges remaining are equal to what each had initially after sharing.How many total cartridges they initially they shared?
P pages read in d mins after day p+1 pages read in d+1 mins last day 379 pages done in 317 mins find p+4
There is puzzle with the word "CONSTANTINE" and exactly don't know the question if anybody knows the Q&A plz send it ahmed.basha.munna@gmail.com
sir i need catholic syrian bank previous question papers fully. it will be helpful for me to greater extend .please do the needful to me.
At 6o'clock ,a watch strokes 6 times.The time between first and last is 30secs.At midnight 12o' clock how much time for all strokes?
Three neighbours are there. 1st one lends 2nd and 3rd that many no.of tractors that then already each had.After few months , 2nd lends to 1st and 3rd that many tractors then they had. After a few months 3rd lends to 1st and 2nd that many tractors then they had.Now each of them got 24. Find howmany they had initially?
IDear sir, I have had a data containing of 4 numbers on daily basis for which I would like to know what is the next comming 4 numbers. Based on that data I would like to find out the next comming numbers. Support needed. regards chandramohan gudivada 09849974512 cm116_99@yahoo.com Example : 4513, 4132, 1465, 2941, 1762, 1432, 3412, 5283, 7261, 2643, 4751, 2581, 6513 .... and what is the next number in the sequence?
plz send me aptitude test questions on my email id bpraichur@gmail.com
why should we hire the others waiting to be interviewed?
Ship is 180 miles away from shore. At that time a plane started from shore to pass some information to the ship with 10 times velocity of ship's velocity. At what distance from shore they will meat?
what job position/s are you currently holding with your current employer?
What is the syllabus for numerical aptitude exam to be held by the United bank of India. Plz inform me through email. Thanking You!
