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Saturday, 15 August 2026
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Mathematics Past Questions and Answers

Topic: Sum of Geometric progression

Jamb Mathematics Questions - Sum of Geometric progression

Question 1:
If the 3rd and 7th terms of a G.P are 9 and 1/9 respectively. Find the common ratio.
  • A \(\frac{1}{3}\)
  • B \(\frac{1}{9}\)
  • C \(\frac{2}{3}\)
  • D \(\frac{2}{9}\)
View Answer & Explanation
Question 2:
The amount A to which a principal P amounts at r% compound interest for n years is given by the formula A = P(1 + (r ÷ 100)\(^n\). Find A, if P = 126, r = 4 and n = 2.
  • A N132.50K
  • B N136.30K
  • C N125.40K
  • D N257.42K
View Answer & Explanation
Question 3:
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
View Answer & Explanation
Question 4:
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 \(\frac{680}{3}\)
View Answer & Explanation
Question 5:
If 7 and 189 are the first and fourth terms of geometric progression respectively, find the sum of the first three terms of the progression
  • A 182
  • B 91
  • C 63
  • D 28
View Answer & Explanation