Question

The sum of all numbers b/w 1 to 200 which are multiples of 6

Answer 1

Answer:

3366

Explanation:

6 multiples b/w 1 to 200,

n=198/6

=33

Formula -:

6*(1/2*(n)*(n+1))

= 6*(1/2*33*34)

= 6*561

= 3366