Sequences — Quiz 1

Questions in this quiz (6)

1. Complete the sequence: 2, 6, 11, 17, 24, ___?

   • 33
   • 31
   • 30
   • 32

2. Find the 120th term of the arithmetic sequence $$\{a_n, n = 1, 2, 3, \ldots\}$$ with common difference$$d = 2.3$$ and first term $$a_1 = 5$$.

   • $$119$$
   • $$278.7$$
   • $$273.7$$
   • $$283.7$$

3. A sequence is given by: $$a_1=3$$ and $$a_{n+1}=3a_n-2$$ for $$n\geq1$$. What is $$a_5$$?

   • $$75$$
   • $$95$$
   • $$55$$
   • $$163$$

4. Express the general term of the following sequence.5, 10, 15, 20, ...

   • $$a_n = n-5$$
   • $$a_n = n+5$$
   • $$a_n = 5n$$
   • $$a_n = 2n$$

5. Find the 6th term of geometric sequence $$\{a_n, n = 1, 2, 3, \ldots\}$$ with common ratio $$r = 2$$ and first term $$a_1 = 3$$.

   • 96
   • 192
   • 128
   • 64

6. Arithmetic sequence $$\{a_n, n = 1, 2, 3, \ldots\}$$ has a common difference of $$3$$. Compute the values of $$a_{60} - a_{30}$$.

   • 60
   • 90
   • 87
   • 177