SOLUTION: Find the difference between the sum of all odd numbers and even numbers from 25 to 100?
Method please.
Algebra.Com
Question 478068: Find the difference between the sum of all odd numbers and even numbers from 25 to 100?
Method please.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
The number of odd integers from 25 to 99:
99 = 25 + (n-1)2 ==> 74 = (n-1)2 ==> 37 = n-1 ==> n = 38
==>
The number of even integers from 26 to 100:
100 = 26 + (n-1)2 ==> 74 = (n-1)2 ==> 37 = n-1 ==> n = 38
==>
==> .
RELATED QUESTIONS
if we write the numbers from 50 to 151 what is the difference between the sum of all the... (answered by ikleyn,solver91311)
if we write the numbers from 50 to 151 what is the difference between the sum of all the... (answered by ikleyn)
A student wanted to find the sum of all the even numbers from 1 to 100. He said:
The... (answered by Alan3354)
The difference between the sum of even numbers and the sum of odd numbers between 10 and... (answered by ikleyn)
find the difference between the sum of the first 500 even numbers and the sum of the... (answered by richard1234)
Please help me to solve this question: Find the difference between the sum of all prime... (answered by Fombitz)
Consider the integers from 1 to 100 inclusive. What is the difference between the sum of... (answered by nabla)
how many consectives even numbers are there between 35 and 45'
how many consectives odd... (answered by KMST)
The sum of four even consecutive numbers is 100. What is the difference between the... (answered by luke94,MathTherapy)