Progression - Jamb Mathematics Past Questions and Answers

Question 6:

• JAMB 2017

Find the sum to infinity of the series
$\frac{1}{4}$, $\frac{1}{8}$, $\frac{1}{16}$,..........

A. $\frac{1}{2}$
B. $\frac{3}{5}$
C. $\frac{-1}{5}$
D. $\frac{73}{12}$

Question 7:

• 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 8:

• JAMB 2016

The nth term of the sequence 3, 9, 27, 81.....is

A. 3 x 3^n-2
B. 3 x 3^n-1
C. 3 x 3ⁿ⁺²
D. 3 x 3ⁿ⁺¹

Question 9:

• JAMB 2015

The first and last term of a linear sequence (AP) are 6 and 10 respectively. If the sum of the sequence is 40. Find the number of terms

A. Nth = 3
B. Nth = 4
C. Nth = 5
D. Nth = 6

Question 10:

• 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