Progression - Jamb Mathematics Past Questions and Answers

Question 66:

• JAMB 2011

Find the sum of the first 18 terms of the series 3, 6, 9,..., 36.

A. 505
B. 513
C. 433
D. 635

Question 67:

• JAMB 2011

The seconds term of a geometric series is 4 while the fourth term is 16. Find the sum of the first five terms

A. 60
B. 62
C. 54
D. 64

Question 68:

• JAMB 2011

The sum of four consecutive integers is 34. Find the least of these numbers

A. 7
B. 6
C. 8
D. 5

Question 69:

• JAMB 2012

The nth term of a sequence is n² - 6n - 4. Find the sum of the 3rd and 4th terms.

A. 24
B. 23
C. -24
D. -25

Question 70:

• JAMB 2012

The sum to infinity of a geometric progression is \(-\frac{1}{10}\) and the first term is \(-\frac{1}{8}\). Find the common ratio of the progression.

A. \(-\frac{1}{5}\)
B. \(-\frac{1}{4}\)
C. \(-\frac{1}{3}\)
D. \(-\frac{1}{2}\)