UrbanPro
true

Take Class 8 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

How to solve arithmetic series easily without remembering any formula?

Anand Prakash Yadav
23/05/2017 0 0

1+2+3+4+5+.........100(100 terms)

it can be seen as follows:

1+2+3+4+5+.......+95+96+97+98+99+100

can be rewritten as follows:

(1+100)+(2+99)+(3+98)+(4+97)+(5+96)........so on

every term become 101 this way and the number of such terms will be half as it was before 

so before it was 100 terms, now it is 50 terms.

101+101+101+101+101+.......added 50 times 

which is 101*50=5050

0 Dislike
Follow 0

Please Enter a comment

Submit

Other Lessons for You

Building own study notes
My philosophy has always been in support of active learning by encouraging students to build their own set of study notes u. Many of my students have secured good marks by creating their own notes .I...

Optical Image
If a beam of light emitted by an illuminated object suffers a change in the direction due to reflection or refraction, the reflected or refracted rays of light converge or appear to diverge from another...

Difference Between Water and Fat Soluble Vitamins
1. Vitamins are organic compounds needed as nutrients to keep us healthy. 2. Water- soluble vitamins are easily dissolved by water. Thus, we need to take them daily. 3. Fat- soluble vitamins dissolve...

Building own study notes
My philosophy has always been in support of active learning by encouraging students to build their own set of study notes u. Many of my students have secured good marks by creating their own notes .I...

smart work with patience creates victory
In a village named ramapuram aa unemployee gopi lives. He is in search of job, roaming without food from a week. He decided to sell the wooden sticks by chopping the tree, he started chopping the trunk...
X

Looking for Class 8 Tuition Classes?

The best tutors for Class 8 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 8 Tuition with the Best Tutors

The best Tutors for Class 8 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more