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Tuesday, 21 April 2026
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Mathematics Past Questions and Answers

Jamb 2015 Mathematics Questions

Question 51:
The area of an ellipse is 132cm2.The length of its major axis is 14cm.Find the length of it minor axis
  • A 10.5cm
  • B 5cm
  • C 10cm
  • D 12cm
View Answer & Explanation
Question 52:
The volume of a cone (s) of height 6cm and base radius 5cm is
  • A 157cm<sup style='font-size: smaller;'>3</sup>
  • B 155cm<sup style='font-size: smaller;'>3</sup>
  • C 175cm<sup style='font-size: smaller;'>3</sup>
  • D 145cm<sup style='font-size: smaller;'>3</sup>
View Answer & Explanation
Question 53:
The probability of an outcome A is 1/6 . The probability of the B outcome is 1/4 . If the probability of A or B or both is 1/12 . What is the probability of both outcomes A and B?
  • A 1/2
  • B 1/3
  • C 2/5
  • D 3/4
View Answer & Explanation
Question 54:
Given that Z = {1,2,4,5} what is the power of set Z?
  • A 16
  • B 8
  • C 10
  • D 12
View Answer & Explanation
Question 55:
Calculate the value of x and y if (27x ÷ 81x+2y) = 9 ,x + 4y = 0
  • A X = 1, y = 1/2
  • B X = 2, y = — 1/2
  • C X − 0, y = 1
  • D X = 2, y = —1
View Answer & Explanation