Without Doing the Actual Addition, Find the Sum Of: 1 + 3 + 5 + 7 + 9 + ………………… + 51 + 53 - Mathematics

Advertisements
Advertisements
Sum

Without doing the actual addition, find the sum of:

1 + 3 + 5 + 7 + 9 + ………………… + 51 + 53

Advertisements

Solution

1 + 3 + 5 + 7 + 9 + ……………. + 51 + 53

= Sum of first 27 odd natural number = 272 = 729

  Is there an error in this question or solution?
Chapter 3: Squares and Square Root - Exercise 3 (C) [Page 45]

APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 3 Squares and Square Root
Exercise 3 (C) | Q 13.3 | Page 45

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

What will be the unit digit of the square of the given number?

272


What will be the unit digit of the square of the given number?

3853


What will be the unit digit of the square of the given number?

12796


The square of which of the following number would be an odd number? 

 731 


Find the least number of 4 digits which is a perfect square.


A General arranges his soldiers in rows to form a perfect square. He finds that in doing so, 60 soldiers are left out. If the total number of soldiers be 8160, find the number of soldiers in each row.


Find the value of:

\[\frac{\sqrt{441}}{\sqrt{625}}\]

 


Evaluate: 372 – 362


Evaluate: 1012 – 1002


Without doing the actual addition, find the sum of:

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23


Without doing the actual addition, find the sum of:

1 + 3 + 5 + 7 + 9 + ……………… + 39 + 41.


Write three sets of Pythagorean triplets such that each set has numbers less than 30.


The number of non-square numbers between 242 and 252 is ______


The number of perfect square numbers between 300 and 500 is ______


The number of zeros in the square of 91000 is 9


The square of 75 is 4925


Find the square of the following number

17


Find the square of the following number

203


Find the square of the following number

1098


Find the length of a room whose area is `153/10` sq.m and whose breadth is `2 11/20` m


225 square shaped mosaic tiles, area 1 square decimeter exactly cover a square shaped verandah. How long is each side of the square shaped verandah?


A group of 1536 cadets wanted to have a parade forming a square design. Is it possible? If it is not possible, how many more cadets would be required?


Using distributive law, find the squares of 101


What will be the number of unit squares on each side of a square graph paper if the total number of unit squares is 256?


A perfect square number has four digits, none of which is zero. The digits from left to right have values that are: even, even, odd, even. Find the number.


Share
Notifications



      Forgot password?
Use app×