Sandbar sharks or Brown sharks are thought to live between 20 and 30 years. Investigation made by Joung (2004) found to be about 20 years of age. While, Sminkey (1996) mention that sandbar sharks can live to be more than 30 years old.
The average GPA at Harvard is 4.04. (Most schools use a weighted GPA out of 4.0, though some report an unweighted GPA. With a GPA of 4.04, Harvard requires you to be at the top of your class. You'll need nearly straight A's in all your classes to compete with other applicants. Furthermore, you should be taking hard classes - AP or IB courses - to show that college-level academics is a breeze.
By applying sampled GPA data from over 150 schools, we are able to estimate that the Harvard University average GPA ranges from 3.90 to 4 for accepted students.