Progression - Jamb Mathematics Past Questions and Answers

Question 51:

• JAMB 2003

The sum of the first n terms of an arithmetic progresssion is 252. If the first term is -16 and the last term is 72, find the number of terms in the series

A. 6
B. 7
C. 8
D. 9

Question 52:

• JAMB 2004

Given that the first and forth terms of G.P are 6 and 162 respectively, find the sum of the first three terms of the progression

A. 27
B. 8
C. 78
D. 48

Question 53:

• JAMB 2004

The nth term of two sequences are Q_n = 3 . 2^{n - 2} and U_m = 3 . 2^{2m - 3}. Find the product of Q₂ and U₂.

A. 18
B. 12
C. 6
D. 3

Question 54:

• JAMB 2004

Find the sum to infinity of the series 1/2 , 1/6, 1/18, .....

A. 2/3
B. 1/3
C. 3/4
D. 1

Question 55:

• JAMB 2005

If the 7th term of an AP is twice the third term and the sum of the first four terms is 42, find the common difference.

A. 6
B. 3
C. 2
D. 1