Question

P and Q are two positive integers such that PQ=72, which of the following cannot be the value of p + q? a)17 b) 18 c) 27 d) 28​

Answer 1

pq=72 p+q

1*72 73

2*36 38

3*24 27

4*18 22

6*12 18

8*9 17

28 cannot be the value

answer:d