question_answer

Let pqr is a three digit number such that \[p\ne 0\] and \[p<q\] and \[r<q\] where p, q and r are hundred's digit, ten's digit and unit's digit, respectively. How many such 3 - digit positive integers are possible?

A)  180                             

B)  200

C)  220                             

D)  240

E)  None of these