ALLCBTs

Sequences and Series Practice Questions.

Published on Aug 29, 2025 • Education

Introduction

Welcome to today’s tutorial on Arithmetic Progression (AP) under the broader topic of Sequences and Series. This concept frequently appears in WAEC, NECO, NABTEB, and JAMB examinations.

In this lesson, we will solve worked examples and then provide multiple-choice practice questions to strengthen your understanding.

Answer: The 10th term is 32

Answer: The sum of the first 20 terms is 610

Question 1

The nth term of an AP is given as Tn=7+(n−1)×4T_n = 7 + (n-1)\times 4Tn​=7+(n−1)×4. Find the 5th term.

A. 11
B. 23
C. 27
D. 31

Answer: B. 23

Question 2

If the first term of an AP is 3 and the common difference is 5, what is the 10th term?

A. 48
B. 45
C. 50
D. 53

Answer: B. 48

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