Find the sum of all natural no. between 101 and 304, Mathematics

Find the sum of all natural no. between 101 & 304 which are divisible by 3 or 5.

Find their sum.

Ans:    No let 101 and 304, which are divisible by 3.

102, 105.............303 (68 terms)

No. which are divisible by 5 are 105, 110......300 (40 terms)

No. which are divisible by 15 (3 & 5) 105, 120...... (14 terms)

∴ There are 94 terms between 101 & 304 divisible by 3 or 5. (68 + 40 - 14)

∴ S68 + S40 - S14

= 19035

 

Posted Date: 4/8/2013 5:53:46 AM | Location : United States







Related Discussions:- Find the sum of all natural no. between 101 and 304, Assignment Help, Ask Question on Find the sum of all natural no. between 101 and 304, Get Answer, Expert's Help, Find the sum of all natural no. between 101 and 304 Discussions

Write discussion on Find the sum of all natural no. between 101 and 304
Your posts are moderated
Related Questions
WHAT IS PRECALC

Find out the general formula for the tangent vector and unit tangent vector to the curve specified by r → (t) = t 2 i → + 2 sin t j → + 2 cos t k → . Solution First,

The Mean Value Theorem for Integrals If f(x) is a continuous function on [a,b] then here is a number c in [a,b] thus, a ∫ b f(x) dx = f(c)(b -a) Proof Let's begin

Change of base: The final topic that we have to look at in this section is the change of base formula for logarithms. The change of base formula is,

Question: There are 6 letters and 6 self addressed envelopes.What is the probability that atleast 1 is placed correctly?? Ans: If we let A be the event that letter A is in the cor



Evaluating a Function You evaluate a function by "plugging in a number". For example, to evaluate the function f(x) = 3x 2 + x -5 at x = 10, you plug in a 10 everywhere you

I need help converting my project fractions to the number 1.

How should shoppers Stop develop its demand forecasts?