How many permutations of 5 numbers are possible? How many possible combinations of the 4 numbers 1-6 are there? How many possible combinations are there of 4 numbers between 1 and 9? Use the permutation formula to calculate the number of permutations of the set {a, b, c, d} taken two...
How many 4-digit numbers can be formed by using the digits 1 to 9 if repetition of digits is not allowed? View Solution How many number of 4 digits can be formed with the digits 1,2,3,4,5 if repetition of digit is allowed and not allowed?
How many 2-letter combinations can be made from the letters a, b, c, and d? How many 4 letter codes can be made if no letter can be used twice? To determine how many strings of 6 letters of the English alphabet contain at least 2 vowels?
View Solution How many 4-digit numbers are there, when a digit may be repeated any number of times? View Solution How many 3-digit numbers are there when a digit may be repeated any number of times? View Solution MODERN PUBLICATION-PERMUTATIONS AND COMBINATIONS -EXERCISE 7 (d) Short Answer...
If the sum is too large, you can repeat the process until you can tell whether it is a multiple of three. This is the basis for the solution. Since the last two digits are 23, the sum of the digits is 2+3=5 (therefore it is not divisible by three). However certain numbers can...
Subsets of {2,3,4,5,6,7,8,9} indude a singe digit up to all eigh tnumbers.Therefore,we must add the combinations of all possible subsets and subtract from each of the subsets fomed by the composite numbers. Hence: (81)−(41)+(82)−(42)+(83)−(43)+(84)−1+(85)...
How many possible combinations are there of 4 numbers between 1 and 9? How many possible combinations of the 4 numbers 1-6 are there? How many combinations with 5 numbers between 1 & 5 are possible? How many combinations of 6 numbers between 1 and 49 are possible? How many combinations ...
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As its name implies, the combination of columns that make up the UNIQUE constraint's key must be unique. So, any combinations of columns that also include the PRIMARY KEY constraint's columns are de facto unique, too. Since we need an index on RequiredDate and OrderID–in order to get ...
=SUMPRODUCT(LARGE(B2:B15, {1,2,3})) Or =SUMPRODUCT(LARGE(B2:B15, D2:D4)) How to sum many top numbers If you are looking to add up the top 10 or 20 numbers in a range, listing their positions in an array constant manually may be quite tiresome. In this case, you can construc...