Progression - Jamb Mathematics Past Questions and Answers

Question 61:

• JAMB 2008

The fifth term of an A.P is 24 and the eleventh term is 96. Find the first term.

A. 12
B. 4
C. -12
D. -24

Question 62:

• JAMB 2009

The sum of the first n terms of the arithmetic progression 5, 11, 17, 23, 29, 35, ... is

A. N(3n - 0.5)
B. N(3n + 2)
C. N(3n + 2.5)
D. N(3n + 5)

Question 63:

• JAMB 2009

Find to infinity, the sum of the sequence \(1, \frac{9}{10}, \left(\frac{9}{10}\right)^2, \left(\frac{9}{10}\right)^3,.....\)

A. 10
B. 9
C. ¹⁰/₉
D. ⁹/₁₀

Question 64:

• JAMB 2010

The 3rd term of an arithmetic progression is -9 and the 7th term is -29. Find the 10th term of the progression

A. -44
B. -165
C. 165
D. 44

Question 65:

• JAMB 2010

Find the sum to infinity of the following series. 0.5 + 0.05 + 0.005 + 0.0005 + .....

A. \(\frac{5}{8}\)
B. \(\frac{5}{7}\)
C. \(\frac{5}{11}\)
D. \(\frac{5}{9}\)