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In a set of seven numbers the average of the first four is 15 and the average in the last three is 8 then what is the average in all 7?
To find the average of all seven numbers, we can use the formula for the average: (sum of all numbers) / (total number of numbers). Given that the average of the first four numbers is 15, the sum of the first four numbers is 15 * 4 = 60. Similarly, the sum of the last three numbers is 8 * 3 = 24. Therefore, the sum of all seven numbers is 60 + 24 = 84. Finally, the average of all seven numbers is 84 / 7 = 12.
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What is the aritmetic average of the first twenty-three odd numbers?
The 12th odd number.
What is the average of 5000 and 7000?
To calculate the average of two numbers, add them together, and divide the result by 2. (For the average of three numbers, you add up the three numbers, and divide by three, etc.) The average is (5000 + 7000)/2 = 6000
What is the smallest three-digit number divisible by the first three prime numbers and the first three composite numbers?
The smallest three-digit number divisible by the first three prime numbers (2, 3, and 5) and the first three composite numbers (4, 6, and 8) is 120.
If the sum of 3 numbers is 144 what is the average of these three numbers?
48
How many whole numbers are between 3 and 7?
There are three whole numbers berween three and seven. They are four, five and six.
The average of the first three numbers was sixThe average of the next seven numbers was 19 What was the overall average of all 10 numbers?
12
In set of seven numbers the average of the first four is 15 and the average of the last three is 8 .what is the average of all seven numbers?
To find the average of all seven numbers, we first calculate the total for the first four numbers. Since their average is 15, their total is (4 \times 15 = 60). For the last three numbers, with an average of 8, their total is (3 \times 8 = 24). Therefore, the total of all seven numbers is (60 + 24 = 84), and the average of all seven numbers is ( \frac{84}{7} = 12).
If the sum of three numbers is 456 and the first two numbers are 121.3 and 175.4 what is the average of the three numbers?
To find the average of the three numbers, first calculate the third number by subtracting the sum of the first two from the total sum: (456 - (121.3 + 175.4) = 456 - 296.7 = 159.3). Next, add all three numbers: (121.3 + 175.4 + 159.3 = 456). Finally, divide the total by 3 to find the average: (456 \div 3 = 152). Thus, the average of the three numbers is 152.
What is the arithmetic mean of the sum of the first five prime numbers and the sum of the cubes of the first three prime numbers?
The sum of the first five prime numbers is 28. The sum of the cubes of the first three prime numbers is 160. The average of 28 and 160 is 94.
What is the aritmetic average of the first twenty-three odd numbers?
The 12th odd number.
What is the smallest number divisible by the first three prime numbers and the first three composite numbers explain?
the answer is 120 because the first three prime numbers are 2,3,5 and the first three composite numbers are 4,6,8.
What is the average of 5000 and 7000?
To calculate the average of two numbers, add them together, and divide the result by 2. (For the average of three numbers, you add up the three numbers, and divide by three, etc.) The average is (5000 + 7000)/2 = 6000
What are the three numbers if the average of three consecutive numbers is 126?
125, 126 and 127.
Could an average of three numbers be one of those three numbers?
Yes. For example, the average of 5, 7, and 9 is 7.
What are three prime numbers where the average is a prime number?
3, 5, and 7 are three prime numbers whose average is 5.
What are the first three prime numbers?
The first three prime numbers are 2,3 and 5.
What is the average of 51 52 on 56?
The average of the numbers 51, 52, and 56 is 53. To get the average you would add all three numbers and then divide by three.
