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Q: What odd number is between 21 and 40 with a odd sum of 8?

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The sum of any four odd numbers will never be equal to an odd number.

The probability is 21/36 = 7/12

It is 21 because 21+23 = 44

All odd numbers are the sum of two consecutive numbers. Odd multiples of 7 less than 25 are 7 and 21.

21 is an odd composite number

15

10/21 First, observe that for the sum of the three balls to be odd, either one is odd and two are even, or all three are odd. Since the sum of two odd numbers is even, the sum of two even number is even, and the sum of an even number and an odd number is odd. P(exactly one is odd)=(5/9)*(4/8)*(3/7)*3=180/504=5/14 P(all three are odd)=(5/9)*(4/8)*(3/7)=60/504=5/42 P(sum is odd)=5/14+5/42=15/42+5/42=20/42=10/21, which is approximately .48

Start by dividing 44 by 2 to get 22. Therefore, 22 + 22 = 44. If we subtract 1 from one number, and add 1 to the other number, the sum will be the same, but now using two consecutive odd numbers; ie, 21 + 23 = 44. Therefore, the smaller number is 21.

this would be explained on the basis of two FACTS below....... sum of two odd numbers are always even and sum of to even numbers are also always even then how 6 odd numbers (consider 3 pairs, 9 5 3 1 being odd numbers) can make an odd number 21..!! SO SIMPLE Make your basics strong...

First odd number greater than 20 is 21 Last odd number less than 200 is 199 → number of odd numbers between 20 and 200 is (199 - 21) ÷ 2 + 1 = 90

An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 21 is an odd number.

No, it cannot be done. As 23 is odd, two numbers used would have to be one odd and one even. As 2 is the only even prime number and 21 + 2 equals 23, but 21 is not a prime number, it cannot be done.

It is 23 because 17+19+21+23 = 80

It is odd.

21 23 25 27 29

21, 23, 25, 27, 29

The number 21 is odd since it cannot be divided by two to make a whole number.

17, 19, 21

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63 / 3 = 21The middle number is 21The odd numbers next to 21 are 19 and 2319 + 21 + 23 = 63

The sum of any four odd numbers must be even so the question cannot possibly refer to a sum (or difference). The question could refer to multiplication in which case a simple answer is 1*1*1*21 = 21

21

17 , 19 , 21 and 23 are the odd integers whose sum is 80 and the least integer is 17

38 2-19= 21

an odd number