Question

If A is the set of even natural numbers less than 8 and B is the set of prime numbers less than 7, then the number of relations from A to B is

• A. $2^9$
• B. $9^2$
• C. $3^2$
• D. $2^9 - 1$

Answer 1

Answer: (A)

$2^9$

Answer 2

A = {2, 4, 6}, B = { 2, 3, 5} No. of relations from A to B = $2^{3 \times 3} = 2^9$