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 1571: Simplify 4$\sqrt{27}$ + 5$\sqrt{12}$ − 3$\sqrt{75}$ Options:
  A) 7
  B) − 7
  C) − 7$\sqrt{3}$
  D) 7$\sqrt{3}$
  Show Answer
  The correct answer is D .
• Question 1572: The angle of elevation of a building from a measuring instrument placed on the ground is 30^o. If the building is 40m high, how far is the instrument from the foot of the building? Options:
  A) $\frac{20}{\surd 3}$m
  B) $\frac{40}{\surd 3}$m
  C) 20√3m
  D) 40√3m
  Show Answer
  The correct answer is D .
• Question 1573:

  If S = (4t + 3)(t - 2), find ds/dt when t = 5 secs.

  Options:
  A) 50 units per sec
  B) 35 units per sec
  C) 22 units per sec
  D) 13 units per sec
  Show Answer
  The correct answer is B .
• Question 1574:

  The angle of a sector of acircle, radius 10.5cm, is 48°,Calculate the perimeter of the sector

  Options:
  A) 8.8cm
  B) 25.4cm
  C) 25.6cm
  D) 29.8cm
  Show Answer
  The correct answer is D .
• Question 1575: Find the equation of the locus of a point P(x,y) which is equidistant from Q(0,0) and R(2,1). Options:
  A) 4x + 2y = 5
  B) 4x - 2y = 5
  C) 2x + 2y = 5
  D) 2x + y = 5
  Show Answer
  The correct answer is A .
• Question 1576: If {(a²b^-3c)^3/4/a^-1b⁴c⁵} = a^pb^qc^r; what is the value of p+2q? Options:
  A) (5/2)
  B) -(5/4)
  C) -(25/4)
  D) -10
  Show Answer
  The correct answer is D .
• Question 1577:

  Find the sum of the 20 terms in an arithmetic progression whose first term is 7 and last term 117?

  Options:
  A) 2480
  B) 1240
  C) 620
  D) 124
  Show Answer
  The correct answer is B .
• Question 1578:

  A solid hemisphere has a radius of 7 cm. Find the total surface area.

  Options:
  A) 400 cm²
  B) 462 cm²
  C) 66 cm²
  D) 308 cm²
  Show Answer
  The correct answer is B .
• Question 1579: if (x - 1), (x + 1) and (x - 2) are factors of the polynomial ax³ + bx² + cx - 1, find a, b, c in that order. Options:
  A) -1/2, 1., 1/2
  B) 1/2, 1, 1/2
  C) 1/2, 1, -1/2
  D) 1/2, -1, 1/2
  Show Answer
  The correct answer is A .
• Question 1580:

  Calculate the total surface area of a cupboard which measures 12cm by 10cm by 8cm

  Options:
  A) 1920cm${}^2$
  B) 592cm${}^2$
  C) 296cm${}^2$
  D) 148cm${}^2$
  Show Answer
  The correct answer is B .