Mathematics Exam Past Questions and Answers | JAMB, WAEC and NECO

Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.

• Question 231: If P is a set of all prime factors of 30 and Q is a set of all factors of 18 less than 10, find P $\cap$ Q Options:
  A) {3}
  B) {2,3}
  C) {2,3,5}
  D) {1,2}
  Show Answer
  The correct answer is B .
• Question 232: Find the mean of 10, 8, 5, 11, 12, 9, 6, 3, 15, and 23. Options:
  A) 11.2
  B) 10
  C) 10.2
  D) 11.3
  Show Answer
  The correct answer is C .
• Question 233:

  

  In the figure, If PT is parallel to RS, PQ = PT, and angle SQT = 90${}^{\circ }$, find x.

  Options:
  A) 35${}^{\circ }$
  B) 50${}^{\circ }$
  C) 55${}^{\circ }$
  D) 70${}^{\circ }$
  E) 80${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 234: If three numbers P, Q, R are in ratio 6 : 4 : 5, find the value of $\frac{3p-q}{4q+r}$ Options:
  A) $\frac{3}{2}$
  B) $\frac{2}{3}$
  C) 2
  D) 3
  E) 18
  Show Answer
  The correct answer is B .
• Question 235: The 4th term of an A.P. is 13 while the 10th term is 31. Find the 21st term. Options:
  A) 175
  B) 85
  C) 64
  D) 45
  Show Answer
  The correct answer is C .
• Question 236:

  

  In the figure, find the area of XYZW.

  Options:
  A) 60cm²
  B) 54cm²
  C) 27cm²
  D) 54$\sqrt{2}$cm²
  E) 27$\sqrt{2}$cm²
  Show Answer
  The correct answer is C .
• Question 237: What value of g will make the expression 4x² - 18xy + g a perfect square? Options:
  A) 9
  B) $\frac{9y^2}{4}$
  C) 81y^2
  D) $\frac{18y^2}{4}$
  Show Answer
  The correct answer is D .
• Question 238: Find the probability that a number picked at random from the set(43, 44, 45, ..., 60) is a prime number. Options:
  A) $\frac{2}{3}$
  B) $\frac{1}{3}$
  C) $\frac{2}{9}$
  D) $\frac{7}{9}$
  Show Answer
  The correct answer is C .
• Question 239:

  

  In the figure, the chords XY and ZW are produced to meet at T such that YT = WT, ZYW = 40${}^{\circ }$ and YTW = 30${}^{\circ }$. What is YXW?

  Options:
  A) 50${}^{\circ }$
  B) 75${}^{\circ }$
  C) 35${}^{\circ }$
  D) 115${}^{\circ }$
  E) 30${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 240: Differentiate (2x+5)²(x-4) with respect to x. Options:
  A) 4(2x+5)(x-4)
  B) 4(2x+5)(4x-3)
  C) (2x+5)(2x-13)
  D) (2x+5)(6x-11)
  Show Answer
  The correct answer is D .