Question

There are 25 railway stations between Nellore and Hyderabad. The number of different kinds of single second class tickets to be printed so as to enable a passenger to travel from one station to another is

• A. ${}^{25}{\text{P}}_2$
• B. ${}^{26}{\text{P}}_2$
• C. ${}^{27}{\text{P}}_2$
• D. ${}^{26}{\text{P}}_2$

Answer 1

The correct option is C ${}^{27}{\text{P}}_2$

Nellore + 25 + Hyderbad = 27
Number of tickets = ${}^{27}{\text{P}}_2$