What is the sum of numbers from 91 top 100?

Answer 1

S = 955

This is an arithmetic sequence, and the sum of an arithmetic sequence can be calculated as:

S = n/2 x (U1 + Un)

U1 is the first term (in this case 91) and Un is the last term (in this case 100).

n presents the total number of terms in the sequence

There are 10 numbers in this sequence (91, 92, 93, 94, 95, 96, 97, 98, 99, 100)

So, the sum is : S = 10/2 x (91+100) = 955

Answer 2

I don't knows

Answer 3

1000