Double the mean.
e.g. 7 and 8 7+8=15
15/2=7.5
mean of 7 and 8=7.5
Alternatively you could just add 1/2 and multiply by two. ( it is the same method just worded slightly simpler.
7 8
The numbers are 54 and 56.
The sum of ( n ) consecutive odd numbers starting from the first odd number (1) can be calculated using the formula ( n^2 ). For 800 odd consecutive numbers, the sum is ( 800^2 ), which equals 640,000. Thus, the sum of 800 odd consecutive numbers is 640,000.
Let the three consecutive whole numbers be ( x ), ( x + 1 ), and ( x + 2 ). Their sum can be expressed as ( x + (x + 1) + (x + 2) = 3x + 3 ). Setting this equal to 1539 gives the equation ( 3x + 3 = 1539 ). Solving for ( x ) results in ( x = 512 ), so the three consecutive whole numbers are 512, 513, and 514.
5+2+1=8 and 8 is not divisible by 3.
There are none.
The three consecutive whole numbers you are looking for are 1, 2, and 3. The sum of the first two numbers, 1 + 2 = 3.
No
4,5
49 + 50 = 99
7 8
The numbers are 54 and 56.
Let the three consecutive whole numbers be ( x ), ( x + 1 ), and ( x + 2 ). Their sum can be expressed as ( x + (x + 1) + (x + 2) = 3x + 3 ). Setting this equal to 1539 gives the equation ( 3x + 3 = 1539 ). Solving for ( x ) results in ( x = 512 ), so the three consecutive whole numbers are 512, 513, and 514.
Consecutive whole numbers have no other whole numbers between them.
5+2+1=8 and 8 is not divisible by 3.
No, the sum of two consecutive numbers is always an odd number, and is not divisible by two.
The numbers are 22 and 24.