Question

If a is the set of even natural numbers less than 8 and bis the set of prime no less than 7 .then no of possible relation b/w ato b?

Answer 1

I don't know what you mean by the number of possible relation but what i know is this:

A (2 , 4 , 6)

B (2 , 3 , 5)

So the numbers in common in the two sets are number 2 only

Answer 2

A has 2,4,6

B has 2,3,5

Then both have three numbers so, 2^3×3=2^9