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 1491:

  Score (x)	0	1	2	3	4	5	6
  Freq (f)	5	7	3	7	11	6	7

  Find the variance

  Options:
  A) 3.42
  B) 4.69
  C) 4.85
  D) 3.72
  Show Answer
  The correct answer is D .
• Question 1492:

  

  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 1493: If the function y = 5x is graphed, what would be its intercept on the y-axis? Options:
  A) 5
  B) $\frac{1}{5}$
  C) 1
  D) 2
  E) zero
  Show Answer
  The correct answer is E .
• Question 1494:

  

  In the diagram, QPS = SPR, PR = 9cm. PQ = 4cm and QS = 3cm, find SR.

  Options:
  A) 6$\frac{3}{4}$cm
  B) 3$\frac{3}{8}$cm
  C) 4$\frac{3}{8}$cm
  D) 2$\frac{3}{8}$cm
  Show Answer
  The correct answer is A .
• Question 1495:

  

  The figure shows circles of radii 3cm and 2cm with centres at X and Y respectively. The circles have a transverse common tangent of length 25cm. Calculate XY.

  Options:
  A) $\sqrt{630}$cm
  B) $\sqrt{626}$cm
  C) $\sqrt{615}$cm
  D) $\sqrt{600}$cm
  Show Answer
  The correct answer is B .
• Question 1496: The locus of a point P which is equidistant from two given points S and T is Options:
  A) the perpendicular bisector of ST
  B) the angle bisector of PS and ST
  C) a perpendicular to ST
  D) a line parallel to ST
  Show Answer
  The correct answer is A .
• Question 1497: Find the probability that a number selected at random from 41 to 56 is a multiply of 9 Options:
  A) $\frac{1}{8}$
  B) $\frac{2}{15}$
  C) $\frac{3}{16}$
  D) $\frac{7}{8}$
  Show Answer
  The correct answer is A .
• Question 1498: Find the square root of 170 - 20$\sqrt{30}$ Options:
  A) 2 $\sqrt{10}$ - 5$\sqrt{3}$
  B) 2 $\sqrt{5}$ - 5$\sqrt{6}$
  C) 5 $\sqrt{10}$ - 2$\sqrt{3}$
  D) 3 $\sqrt{5}$ - 8$\sqrt{6}$
  Show Answer
  The correct answer is B .
• Question 1499: For which of the following exterior angles is a regular polygon possible? i. 36^o ii. 18^o iii. 15^o Options:
  A) i and ii
  B) ii only
  C) ii and iii
  D) iii only
  Show Answer
  The correct answer is C .
• Question 1500:

  

  The bar chart shows different colours of cars passing a particular point of a certain street in two minutes. What fraction of the cars is yellow

  Options:
  A) $\frac{1}{5}$
  B) $\frac{2}{25}$
  C) $\frac{4}{15}$
  D) $\frac{3}{25}$
  Show Answer
  The correct answer is D .