WBJEE 2015 Math Solved Paper

Let the point be (a, b)
So,

|a−2b+1|

√5

= √5 ⇒ a - 2b + 1 = ±5 ...... (1)
So,

|2a+3b−1|

√13

= √13 ⇒ 2a + 3b - 1 = ± 13 ..... (2)
Any one of equations (1) combined with any one of equations (2) will yield a point ⇒ 4 points