In an arithmetic sequence the first term is 3 and the 17th term is 35. Find the common difference.

Answer and explanation

Correct answer: A. 2

  1. Step 1: , so .
  2. Step 2: .
Answer
2.
Why not the others: 32: the difference is not divided by . 32/17: it divides by instead of .

Practise more Sequences.

Free questions with an explanation for every one, and full timed Leaving Cert Ireland mock tests.

In an arithmetic sequence… | Leaving Cert Ireland Sequences