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 611: Oke deposited ₦800.00 in the bank at the rate of 12$\frac{1}{2}$% simple interest. After some time the total amount was one and half times the principal. For how many years was the money left in the bank? Options:
  A) 2$\frac{2}{3}$
  B) 4
  C) 5$\frac{1}{3}$
  D) 8
  Show Answer
  The correct answer is B .
• Question 612: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 613:

  If N = $\frac{p}{2}$$(\frac{T_1-T_2}{T_1})$. Find P when N = 12, T₁ = 27 and T₂ = 24.

  Options:
  A) 48
  B) 108
  C) 54
  D) 216
  Show Answer
  The correct answer is D .
• Question 614: Differentiate $\frac{6x^3-5x^2+1}{3x^2}$ with respect to x Options:
  A) $\frac{2+2}{3x^3}$
  B) 2 + $\frac{1}{6x}$
  C) 2 - $\frac{2}{3x^3}$
  D) $\frac{1}{5}$
  Show Answer
  The correct answer is C .
• Question 615: 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 616:

  A box contains two red balls and four blue balls. A ball is drawn at random from the box and then replaced before a second ball is drawn. Find the probability of drawing two red balls.

  Options:
  A) $\frac{2}{3}$
  B) $\frac{1}{3}$
  C) $\frac{1}{4}$
  D) $\frac{1}{9}$
  Show Answer
  The correct answer is D .
• Question 617: If temperature t is directly proportional to heat h, and when t = 20^oC, h = 50 J, find t when h = 60J Options:
  A) 24^oC
  B) 20^oC
  C) 34^oC
  D) 30^oC
  Show Answer
  The correct answer is A .
• Question 618:

  If 2${}^{x+y}$ = 16 and 4${}^{x-y}=\frac{1}{32}$, find the values of x and y.

  Options:
  A) x = $\frac{3}{4}$, y = $\frac{11}{4}$
  B) x = $\frac{3}{4}$, y = $\frac{13}{4}$
  C) x = $\frac{2}{3}$, y = $\frac{4}{5}$
  D) x = $\frac{2}{3}$, y = $\frac{13}{4}$
  Show Answer
  The correct answer is B .
• Question 619: If $\frac{(a^2{b}^{-3}c{)}^{\frac{3}{4}}}{a^{-1}{b}^4{c}^5}=a^p{b}^q{c}^r$ 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 620: If 2₉ x (3Y)₉ = 3₅ x (3Y)₅, find the value of Y. Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is D .