Math, asked by AkshatNasa2327, 1 year ago

find the sum 1+3+5+...+51 without actually adding them

Answers

Answered by Thatsomeone

29

(first no+last no)÷2×total nos
(1+51)÷2×26
26×26
676

Answered by Subhu0

10

use formula. n(n+1)/2

Previous Question

Next Question

Similar questions

Math, 8 months ago

A wheel makes 720 revolutions in one minute. Through how many radians does it turn in two seconds...

English, 8 months ago

w The Dawn b) c) Write two words from the poem actually refer to dresses why d) Write the thyme scheme Find words from the poem a) being worm ond com Grey Thrush, he piped the tune for them. I peeped out through the gloss looked at somethi What do you think I saw to-day when I arose at dawn? Blue Wrens and Yellow-tails dancing on the lawn! Bobbing here, and bawing there.gossiping away. And how I...

Computer Science, 8 months ago

To scan surface file or folder with AVG antivirus click on the_______icon Can someone tell me this answer...

Environmental Sciences, 1 year ago

Why do to use other materials instead of plants for some of our daily needs, like synthetic fiber instead of cotton or plastic instead of wood?

Math, 1 year ago

a number is divided into two parts such that one part is 10 more then the other.if two parts are in the ratio 5;3,find the number and the two parts...

Math, 1 year ago

What rational number?

Math, 1 year ago

Increase 320 by 20% .

Social Sciences, 1 year ago

What is Pisciculture?