Let the cost of full and half first class fare be Rs. x and Rs. x2 respectively and reservation I charges be Rs. Y per ticket.
Case I The cost of one reserved first class ticket from the stations A to B
= Rs 2530
⇒ x + y = 2530
Case II The cost of one reserved first class ticket and one reserved first class half ticket from stations A to B = Rs. 3810
⇒ x+y+x2,+y=3810
⇒ + 2y = 3810
⇒ 3x + y = 7620
Now, multiplying Eq. (i) by 4 and then subtracting from Eq. (ii), we get
3x + 4y = 7620
4x + 4y = 10120
- x = - 2500
⇒ x = 2500
On putting the value of x in Eq. (i), we get
2500 + y = 2530
⇒ y = 2530 – 2500
⇒ y = 30
Hence, full first class fare from stations A to B is Rs. 2500 and the reservation for a ticket is Rs. 30.