Question

What is the sum of natural numbers less than 200 neither divisible by 3 nor by 5

Answer 1

Step-by-step explanation:

The required sum 

=(1+2+3+...+199)−(3+6+9+...+198)−(5+10+15+...+195)+(15+30+45+...+195)

=2199(1+199)−266(3+198)−239(5+195)+213(15+195)

 

=199×100−33×201−39×100+13×105=10732

Answer 2

Answer:

10732

So the sum of all natural numbers less than 200 that are divisible by neither by 3 nor by 5 is 10732.

Step-by-step explanation:

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