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 271: If the exterior angles of a pentagon are x^o, (x + 5)^o, (x + 10), (x + 15)^o and (x + 20)^o, find x Options:
  A) 118^o
  B) 72^o
  C) 62^o
  D) 36^o
  Show Answer
  The correct answer is C .
• Question 272: a senatorial candidate had planned to visit seven cities prior to a primary election. However, he could only visit four of the cities. How many different itineraries could be considered? Options:
  A) 840
  B) 720
  C) 640
  D) 520
  Show Answer
  The correct answer is A .
• Question 273: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 274: A chord drawn 5 cm away from the center of a circle of radius 13 cm. Calculate the length of the chord Options:
  A) 7cm
  B) 9cm
  C) 12cm
  D) 24cm
  Show Answer
  The correct answer is D .
• Question 275: Two similar cylindrical cans have heights of 7cm and 21cm, if the smaller holds 250g of sugar, how many kg of sugar will the larger one hold? Options:
  A) 0.75
  B) 1.5
  C) 2.25
  D) 3.5
  E) 6.75
  Show Answer
  The correct answer is E .
• Question 276: Find the exterior angle of a 12 sided regular polygon Options:
  A) 12${}^{\circ }$
  B) 24${}^{\circ }$
  C) 25${}^{\circ }$
  D) 30${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 277: A sector of a circle is bounded by two radii 7cm long and an arc length 6cm. Find the area of the sector. Options:
  A) 42cm²
  B) 3cm²
  C) 21cm²
  D) 24cm²
  E) 12cm²
  Show Answer
  The correct answer is C .
• Question 278: Simplify 4 √[(390695T− 8)½)] Options:
  A) 1/T
  B) 2T
  C) 5/T
  D) T/5
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  The correct answer is C .
• Question 279: Solve the following equation $\frac{2}{2r-1}$ - $\frac{5}{3}$ = $\frac{1}{r+2}$ Options:
  A) ($\frac{5}{2}$, 1)
  B) (5, -4)
  C) (2, 1)
  D) (1, $\frac{-5}{2}$)
  E) ($\frac{-5}{2}$, 1)
  Show Answer
  The correct answer is D .
• Question 280: The locus of a point equidistant from the intersection of lines 3x - 7y + 7 = 0 and 4x - 6y + 1 = 0 is a Options:
  A) line parallel to 7x + 13y + 8 = 0
  B) circle
  C) semicircle
  D) bisector of the line 7x + 13y + 8 = 0
  Show Answer
  The correct answer is A .