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How many four digit numbers can be made using 1-2-3-4?
It is a permutation problem (any number can be used repeatedly), it will become 4 x 4 x 4 x 4 = 256 four digit numbers. If each number can only be used once, then the answer is 4 x 3 x 2 x 1 = 24 four digit numbers.
How many digits are used to write all numbers from 1 - 100?
-99
How many different digit personal identification numbers are possible if no digit can be used twice a. 1000 b. 5040 c. 9000 d. 10000?
The answer depends on how long the PIN string is. With a ten digit string, where a leading zero is permitted, the answer is 3628800.With only 4 digits, and with leading zero permitted, the answer is 5040.
How many gallons of gas is used if you get 23 miles per gallon with 10000 miles used?
If you get 23 mpg, that means that for every gallon of gas, you travel 23 miles. Simply divide the number of miles travelled by the number of miles you travel per gallon of gas. In this case, 10000 miles / 23 mpg = 434.8 gallons.
How many digits are are used for printing the page numbers of a book that has 115 pages?
Three digits.
When we use permutation or combination?
Permutation is when order matters, combination is when order does not matter
Permutation combination?
They are concepts used in probability theory.
What does the word permutation mean?
Permutation means one of several possible outcomes or considerations. it tends to be used when deciding whether to change arrangements and what the subsequent effects could be.
How many four digit numbers can be made using 1-2-3-4?
It is a permutation problem (any number can be used repeatedly), it will become 4 x 4 x 4 x 4 = 256 four digit numbers. If each number can only be used once, then the answer is 4 x 3 x 2 x 1 = 24 four digit numbers.
How many 4 digit combinations can be made from the numbers 0 to 9?
If every number can be used as many times as you like, there are 104 = 10000 different combinations. If each number can only be used once, there are 9!/(9 - 4)! = 5040 combinations.
Why are combination locks so called when they are in fact permutation locks?
They are called combination locks because that is the general, conventional term used. Trying to call them permutation locks is mixing different areas of usage together and that is not valid.
What is Average cost of electroencephalograph?
new: usd$ 10000 - 40000 used/refurbished 750 - 10000
How many cubic feet is 10000 pounds?
Question is not viable. The material used to create the weight must be evaluated
What numbers can you use to get 42?
There are many possible options. These depend on whether or not numbers can be used many tomes, and also on what operators are allowed.
How many km is 10000 joules?
One Joule is one Newton-Meter, (Joule = Newton times Meter), so 10000 Joule equals 10 Newton-Kilometers (N*km). 10000*J/N = 10 kmAnswerYou might as well be asking how many millimetres there are in kilowatt! Your question is meaningless! A kilometre is used to measure length, whereas the joule is used to measure energy. The original answer is nonsense.
How can prime numbers be used in your everyday life?
Prime numbers are used to find the LCM of numbers Prime numbers are used to find the HCF of numbers Prime numbers are used to simplify fractions Prime numbers are used to find the LCD of fractions
How many times is the number 9 used between 1 and 1000000?
If we throw 1000000 out of our calculations (this is okay because it doesn't have any nines in it) then we're left with all the numbers with 6 or less digits. There are 10 choices for each digit. If the 100000's digit is 9, then there are 105=10000 ways to choose the remaining digits, so there are 10000 numbers that have 9 in the 100000s place. Similarly, there are 10000 numbers that have 9 in the 10000s place, 10000 numbers with 9 in the 1000s place, and so on. There are 6 different places 9 could be in, so the digit 9 is used 10000*6 or 60000 times. Improved... well your missing a zero in your answer.... the total amount of 9's used should be 600 000 , not 60 000 because already in the hundred thousands digit 9 is being used 100 000 times becasue from 900 000- 999 999, the number nine is being used atleast 100 000 times so already your answer is wrong. And if you did you method corectly, it should be the same for every other digit, which means the answer will be that 9 will appear 600 000 times between 1 and 1 000 000. Correct me if im wrong, but im pretty sure that that is the answer. (sources):http://www.cemc.uwaterloo.ca/contests/past_contests/2008/2008GaussSolution.pdf (question 25)
