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 941:

  Given that r =$\sqrt{\frac{3v}{\pi h}}$, make v the subject of the formula

  Options:
  A) v = 3 $\pi r^2$ h
  B) v = $\frac{\pi rh}{3}$
  C) v =  $\frac{\pi r^{2}h}{3}$
  D) v = 3πrh
  Show Answer
  The correct answer is C .
• Question 942: If the numbers M, N, Q are in the ratio 5:4:3, find the value of $\frac{2N-Q}{M}$ Options:
  A) 2
  B) 3
  C) 1
  D) 4
  Show Answer
  The correct answer is C .
• Question 943: Evaluate $\frac{lo{g}_5(0.04)}{lo{g}_{3}18-lo{g}_{3}2}$ Options:
  A) 1
  B) -1
  C) $\frac{2}{3}$
  D) -$\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 944: if X = {all perfect squares less than 40} and y = {all odd numbers from 1 to 15}, find X ∩ Y Options:
  A) {9, 25}
  B) {3, 9}
  C) {1, 9}
  D) {9}
  Show Answer
  The correct answer is C .
• Question 945:

  In how many ways can 2 students be selected from a group of 5 students in a debating competition?

  Options:
  A) 25 ways
  B) 10 ways
  C) 15 ways
  D) 20 ways
  Show Answer
  The correct answer is B .
• Question 946: The quantity y is partly constant and partly varies inversely as the square of x. With P and Q as constants, a possible relationship between x and y is Options:
  A) y = Q + $\frac{P}{x^2}$
  B) y = Q + px
  C) y = $\frac{PQ}{x^2}$
  D) y = Q - $\frac{P}{x^2}$
  Show Answer
  The correct answer is A .
• Question 947:

  If $\frac{x}{a+1}$ + $\frac{y}{b}$ = 1. Make y the subject of the relation.

  Options:
  A) $\frac{b(a+1-x)}{a+1}$
  B) $\frac{a+1}{b(a-x+1)}$
  C) $\frac{a(b-x+1)}{b+1}$
  D) $\frac{b}{a(b-x+1)}$
  Show Answer
  The correct answer is A .
• Question 948:

  If ${25}^{1-x}\times 5^{x+2}÷(\frac{1}{125}{)}^x={625}^{-1}$, find the value of x.

  Options:
  A) x = -4
  B) x = 2
  C) x = -2
  D) x = 4
  Show Answer
  The correct answer is A .
• Question 949: If two dice are thrown together, what is the probability of obtaining at least a score of 10? Options:
  A) $\frac{1}{6}$
  B) $\frac{1}{12}$
  C) $\frac{5}{6}$
  D) $\frac{11}{12}$
  Show Answer
  The correct answer is A .
• Question 950: If y = 243(4x + 5)^-2, find $\frac{dy}{dx}$ when x = 1 Options:
  A) $\frac{-8}{3}$
  B) $\frac{3}{8}$
  C) $\frac{9}{8}$
  D) -$\frac{8}{9}$
  Show Answer
  The correct answer is A .