Progression - Jamb Mathematics Past Questions and Answers

Question 76:

• JAMB 2015

Determine the third term of a geometrical progression whose first and second term are 2 and 54 respectively

A. 1458
B. 1485
C. 1345
D. 1258

Question 77:

• JAMB 2016

If the 2nd term of a G.P is \(\frac{8}{9}\) and the 6th term is 4\(\frac{1}{2}\). Find the common ratio.

A. 2
B. \(\frac{3}{2}\)
C. \(\frac{2}{3}\)
D. 3

Question 78:

• JAMB 2020

Three consecutive terms of a geometric progression are give as n - 2, n and n + 3. Find the common ratio

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

Question 79:

• JAMB 2021

What is the n-th term of the sequence 2, 6, 12, 20...?

A. 4n - 2
B. 2(3^{n - 1})
C. N² + n
D. N² + 3n + 2