NECO 2022 · Paper 1 · Q3

Find the 15th term of a sequence whose nnth term is given by Tn=5n−55T_n = \dfrac{5n - 5}{5}.

Worked solution (try it first)
  1. Put n=15n = 15: the top is 5(15)−5=705(15) - 5 = 70.
  2. Divide by 5: T15=14T_{15} = 14, option C.

Report a problem with this question