Free GRE Practice Questions

The sequence $a_1,a_2,a_3,\dots a_n,\dots$ is such that $a_1=-2,a_2=-5,a_3=4,a_4=3,and{a}_n=a_{n-4}forn>4$.

• Quantity A

  The sum of the first 64 terms of the sequence

• Quantity B

  The sum of the first 98 terms of the sequence