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

Define a hamilton path, Define a Hamilton path. Determine if the following ...

Define a Hamilton path. Determine if the following graph has a Hamilton circuit. Ans: A path is known as a Hamiltonian path if it consists of every vertex of the graph e

Find the solution to initial value problem, Illustration:   Find the soluti...

Illustration:   Find the solution to the subsequent IVP. ty' + 2y = t 2 - t + 1,      y(1) = ½ Solution : Initially divide via the t to find the differential equation in

DIFFERENTIAL EQUATION, Find an integrating factor for the linear differenti...

Find an integrating factor for the linear differential equation and hence Önd its general solution: SOLVE T^ 2 DY DX+T2

Shares and dividends, at what price a 6.25%rs 100 share be quoted when the ...

at what price a 6.25%rs 100 share be quoted when the money is worth 5%

Write the equation of a circle, Example    Write down the equation of a cir...

Example    Write down the equation of a circle  alongwith radius 8 & center ( -4, 7 ) . Solution Okay, in this case we have r =8 , h = -4 and k = 7 thus all we have to do i

Triangles, ABCD is a parallelogram which AB and CD are divides by P and Q. ...

ABCD is a parallelogram which AB and CD are divides by P and Q. Such that AP:PB=3:2 and CQ:QD=4:1. If PQ and AC are meet at R, show that AR=3/7AC.

Application of related rates to economics and business, the wholesale p of ...

the wholesale p of string beans in dollars per bushel and the daily supply x in thousands of bushel,are related by the equation px+6x+7p=5950. if the supply is decreasing at the r

Fractions, you need to cut the proper to cut 2''*4*8 long studs to the prop...

you need to cut the proper to cut 2''*4*8 long studs to the proper length to make a finished wall 8" in height underneath the studs there will be a double plate made up of two piec

Nine minus five times a number, Nine minus five times a number, x, is no le...

Nine minus five times a number, x, is no less than 39. Which of the subsequent expressions represents all the possible values of the number? Translate the sentence, "Nine minus

How to adding polynomials, How to Adding Polynomials? The numerical par...

How to Adding Polynomials? The numerical part of a monomial is called the coefficient. For example, the coefficient of 5x is 5. The coefficient of -7a 2 b 3 is -7. Like

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