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 2331: If y varies inversely as x², how does x vary with y? Options:
  A) x varies inversely as y²
  B) x varies inversely as $\sqrt{y}$
  C) x varies directly as y²
  D) x varies directly as $\sqrt{y}$
  E) x varies directly as y
  Show Answer
  The correct answer is B .
• Question 2332: Find the minimum value of X² - 3x + 2 for all real values of x Options:
  A) -$\frac{1}{4}$
  B) -$\frac{1}{2}$
  C) $\frac{1}{4}$
  D) $\frac{1}{2}$
  Show Answer
  The correct answer is A .
• Question 2333:

  The sum of the ages of Musa and Lawal is 28 years. After sharing a certain sum of money in the ratio of their ages, Musa gets ₦600 and Lawal ₦800. How old is Lawal?

  Options:
  A) 14 years
  B) 20 years
  C) 12 years
  D) 16 years
  Show Answer
  The correct answer is D .
• Question 2334: Simplify T = $\frac{4R_2}{R_1^{-1}+R_2^{-1}+4R_3^{-1}}$ Options:
  A) $\frac{4R_1\times R_2{R}_3}{R_2{R}_3+R_1{R}_3+4R_1{R}_2}$
  B) $\frac{R_1{R}_2{R}_3}{R_2{R}_3+R_1{R}_2+4R_1{R}_2}$
  C) $\frac{16R_1{R}_2{R}_3}{R_2{R}_3+R_1{R}_2+R_1{R}_2}$
  D) $\frac{4R_1{R}_2{R}_3}{4R_2{R}_3+R_1{R}_2+4R_1{R}_2}$
  Show Answer
  The correct answer is A .
• Question 2335: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 2336: The chances of Usman and Dele passing a Mathematics test are 12 and 13 respectively. What is the probability that neither of them passes the test? Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{4}{15}$
  D) $\frac{1}{5}$
  E) $\frac{2}{15}$
  Show Answer
  The correct answer is C .
• Question 2337: Find the slope of the curve y = 2x²n+ 5x - 3 at (1, 4). Options:
  A) 4
  B) 6
  C) 7
  D) 9
  Show Answer
  The correct answer is D .
• Question 2338:

  In a committee of 5, which must be selected from 4 males and 3 females. In how many ways can the members be chosen if it were to include 2 females?

  Options:
  A) 144 ways
  B) 15 ways
  C) 185 ways
  D) 12 ways
  Show Answer
  The correct answer is D .
• Question 2339: The locus of a dog tethered to a pole with a rope of 4m is a Options:
  A) circle with diameter 4m
  B) circle with radius 4m
  C) semi-circle with diameter 4m
  D) semi-circle with radius 4m
  Show Answer
  The correct answer is B .
• Question 2340: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .