The first three terms of an arithmetic sequence are 5; 9; 13. What is the 24th term?

Answer and explanation

Correct answer: D.

  1. Step 1: with .
  2. Step 2: .
Answer
.
Why not the others: : n was used instead of n - 1. : the formula was misapplied. : n - 2 was used instead of n - 1.

Practise more Geometry, sequences and counting.

Free questions with an explanation for every one, and full timed National Benchmark Tests (NBT) mock tests.

All Geometry, sequences and counting questionsTake a mock test

More Geometry, sequences and counting questions