52+54+56 = 162
21
12
12
1
1
2
2
162
108
27
The sum of the numbers between 51 and 150 is equal to 10050 - or 50 x 201 - as there are 50 lots of 201 in the sum.
The sum of the first 10 counting numbers (1-10) is 51.
Sum of 1st n even numbers: count*average = n * (2 + 2*n)/2 = n * (n+1) Sum = 50 * (2+100)/2 = 50*51 = 2550
I believe here are 51 such numbers.
16 and 35
240
The sum of the numbers between 51 and 150 is equal to 10050 - or 50 x 201 - as there are 50 lots of 201 in the sum.
51
The sum of the first 10 counting numbers (1-10) is 51.
A sum has to include two or more numbers in the calculation.
50 and 52 are the even numbers in this range, the odd numbers will be all the others, which is just the number 51.
Sum of 1st n even numbers: count*average = n * (2 + 2*n)/2 = n * (n+1) Sum = 50 * (2+100)/2 = 50*51 = 2550
I believe here are 51 such numbers.
51 + 57 = 108
16 and 35
The sum of the four given numbers is -13.
15,17,19