Question

HELP ! ---If M is the set of positive multiples of 2 less than 150 and N is the
set of positive multiples of 9 less than 150, how many members are there in M n N?

Answer 1

Set of positive multiples of 2 are : 2, 4, 6, 8 like wise upto 148..

So:

M = {2, 4, 6, 8, ....................146, 148,}

Answer 2

Here, first term is : 2, and last term is 148..

Can you find total numbers by using Arithmetic Progression?

Answer 3

I know that I have to find the multiples, I just don't understand the 'n' part of the question..