Which of the following sets are disjoint.
A = {Multiples of 3}
B = {Multiple of 5}
C = {Multiple of 7}

Which of the following is/are rational multiples of log _(2)5?

Which of the following is not a multiple of ‘7’?

State , giving reasons , which of the following pairs of sets are disjoint sets : (i) A = { natural numbers multiples of 3 and less than 28 and (ii) B = { natural numbers divisible by 4 and between 19 and 40 }

Which set of numbers could be the universal set for the sets given below: A = set of multiples of 5, B = set of multiples of 7, C = set of multiples of 12.

If s is a multiple of 12 and t is a multiple of 12, is 7s+5t a multiple of 12?

If A={x:x is a multiple of 3} and B={x:x is multiple of 5} then A-B is

Find the sum of a] first 10 multiples of 8 b] first 25 multiples of 3 c] first 100 multiples of 2.