Find the sum of all natural numbers, Mathematics

Assignment Help:

Find the sum of all natural numbers amongst first one thousand numbers which are neither divisible 2 or by 5

Ans:    Sum of all natural numbers in first 1000 integers which are not divisible by 2 i.e. sum of odd integers.

1 + 3 + 5 + .......... + 999

n = 500

S500 = 500/2 [1 + 999]

= 2,50,000

No's which are divisible by 5

5 + 15 + 25 ........ + 995

n = 100

Sn = 100/2 [5 + 995]

= 50 x 1000 = 50000

∴ Required sum = 250000 - 50,000

= 200000


Related Discussions:- Find the sum of all natural numbers

Halm''s differential equation, please i need the solution for halm''s diffe...

please i need the solution for halm''s differential equation

Polynomials, In arithmetic, we deal with numbers. In contrast to this...

In arithmetic, we deal with numbers. In contrast to this, in algebra, we deal with symbols. These symbols are often represented by lower case alphabets. One of th

Solution of linear equation, Solution of Linear Equation How to solve ...

Solution of Linear Equation How to solve a linear equation? Please assist me.

Draw the bipartite graph, The graph C n , n  ≥  3 contains n vertices and n...

The graph C n , n  ≥  3 contains n vertices and n edges creating a cycle. For what value of n is C n a bipartite graph? Draw the bipartite graph of C n to give explanation for yo

Solve the subsequent lp problem, Solve the subsequent LP problem graphicall...

Solve the subsequent LP problem graphically through enumerating the corner points. MAX:              3X1 + 4X2 Subject to:    X1   12                     X2    10

Determines the angles of depression, A pilot is flying over a straight leng...

A pilot is flying over a straight length of road. He determines the angles of depression of two mileposts, 5 miles apart, to be 32° and 48°. a) Find the distance of the plane f

Example of negative number, Q. Example of negative number? If you take ...

Q. Example of negative number? If you take an elevator 8 stories  down , what would be the opposite of this? The opposite would be that you take the elevator 8 stories  up .

Compute the break-even quantities, The revenue and cost functions for produ...

The revenue and cost functions for producing and selling quantity x for a certain production facility are given below. R(x) = 16x - x 2 C(x) = 20 + 4x a)  Determine the p

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd