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How many three digit numbers can be formed such that the sum of the digits is 6?
21 ways assuming no leading zeros, that is the smallest possible number with three digits is 100 Otherwise if leading zeros are allowed, it is 28 ways. For three digit numbers the first digit can be 1-6. Leaving the remaining two digits to be 6-value_of_first_digit. For first digit 6, the remain two digits sum to 0 which means they can only be 00, ie the number 600 - 1 number For first digit 5, the remain two digits sum to 1 which means they can be 01 or 10, ie the numbers 501, 510 - 2 numbers For first digit 4, the remain two digits sum to 2 which means they can be 02. 11, 20, ie the numbers 402, 411, 420 - 3 numbers etc It can be seen that the number of ways of making a two digit number (with leading zeros) sum to a number less than 10 is the required sum plus 1. So for the remaining first digits, the number of ways are: 3 -> 4 ways, 2 -> 5 ways, 1 -> 6 ways. Thus the total number of ways is 1 + 2 + .. + 6 = 21 If leading zeros are permitted, so that, for example, 060 (60) and 006 (6) are considered as three digits numbers, then there are a further 7 ways with a first digit of 0, making a total 28 ways.
In how many ways can 126 expressed as such a sum?
don't know AWARD! not a helpful answer did u get it from maths mate HAHA lol how did you know??
How many ways can CARS be arranged?
4*3*2*1 = 24 ways.4*3*2*1 = 24 ways.4*3*2*1 = 24 ways.4*3*2*1 = 24 ways.
What is the sum of the first 22 odd numbers?
The sum of a sequence is given by sum = n/2(2a + (n-1)d) where: n = how many a = first number of sequence d = difference between terms of sequence. For the first 22 odd numbers these are: n = 22 a = 1 d = 2 → sum = 22/2(2×1 + (22 - 1)×2)) = 22² = 484 The sum of the first n odd numbers is always n²: sum = n/2(2×1 + (n-1)2) = n/2(1 + (n-1))×2 = n(n) = n²
Write 70 as the sum of two primes in as many ways as you can?
i have a couple 67+3 59+11 53+17 47+23 41+29
How many ways can 126 be expressed as such sum?
1
How many ways to add and get the sum of seven?
There are infinitely many ways to get this sum.
What other n number of unit fractions can be found that sum to 1?
There are infinitely many different ways to make groups of fractions that sum to 1.
What is the probability of rolling two dice and getting a sum that is a multiple of 4?
There are 3 ways to roll a sum of four, 5 ways to roll a sum of eight and 1 way to roll a sum of 12. That makes 9 out of 36, or 1/4.
When rolling a pair of dice how many ways can you get a sum of 1?
count the number of times you get number 1, when you roll a pair of dice.. cheerio
How many ways are there to get a sum of 12?
An infinite number.
What are three numbers that have a sum of 10?
There are many ways to get a sum of 10. Here are some examples: -2+6+2=10 -8+1+1=10 -3+6+1=10 -1+3+6=10 -0+1+9=10
2 fair dice toss how many ways can the sum be at least 6?
10 ways.
How many ways can the number 20 be written as the sum of 3 integers?
An infinite number of ways.
How many of ways will give a sum of 7 on the two up faces?
Assuming 2 dice, 6 ways: 1+6, 2+5, 3+4, 4+3, 5+2, 6+1
In how many ways can you write the number 4 as the sum of 5 nonnegative integars?
Leaving aside permutations, there are five distict ways of writing the number 4 as the sum of 5 non-negative integers.0 + 0 + 0 + 0 + 40 + 0 + 0 + 1 + 30 + 0 + 0 + 2 + 20 + 0 + 1 + 1 + 20 + 1 + 1 + 1 + 1
How many was can you add numbers to the sum of 75?
There are an infinite number of ways to do that.
