Geometric progression - Jamb Mathematics Past Questions and Answers

Question 6:

• 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 7:

• JAMB 2014

What is the common ratio of the G.P. $(\sqrt{10}+\sqrt{5})+(\sqrt{10}+2\sqrt{5})+...$?

A. $\sqrt{2}$
B. $\sqrt{5}$
C. 3
D. 5

Question 8:

• JAMB 2013

If the sum of the first two terms of a G.P. is 3, and the sum of the second and the third terms is -6, find the sum of the first term and the common ratio

A. -2
B. -3
C. -5
D. 5

Question 9:

• JAMB 1978

The sum of the progression is 1 + x + x2 + x3 + ......

A. $\frac{1}{1-x}$
B. $\frac{1}{1+x}$
C. $\frac{1}{x-1}$
D. $\frac{1}{x}$

Question 10:

• JAMB 1978

In a geometric progression, the first term is 153 and the sixth term is $\frac{17}{27}$. The sum of the first four terms is

A. $\frac{860}{3}$
B. $\frac{680}{3}$
C. $\frac{608}{3}$
D. $\frac{680}{3}$