If i get a perfect score on the sat can into college with GPA of 1.5?

While a perfect SAT score is incredibly impressive, a 1.5 GPA is extremely low and will likely prevent admission to most colleges, even highly selective ones. Colleges look at the whole applicant, and a GPA that low raises significant red flags about academic performance and preparedness for college-level work. A perfect SAT score might help *slightly*, showing potential, but it's unlikely to overcome such a low GPA.

There are some *very* rare exceptions, perhaps if the low GPA is due to extenuating circumstances that are thoroughly documented and explained (serious illness, family crisis, etc.) and supported by strong recommendations. However, this is a very difficult hurdle to overcome.

In short, a perfect SAT score is a great achievement, but it's not a magic bullet to compensate for a 1.5 GPA. You'd need to address the reasons for the low GPA and demonstrate significant improvement to have a reasonable chance of college admission.