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 161: Given that 10^x = 0.2 and log₁₀2 = 0.3010, find x Options:
  A) -1.3010
  B) -0.6990
  C) 0.6990
  D) 1.3010
  E) 0.02
  Show Answer
  The correct answer is B .
• Question 162: 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 .
• Question 163: Find the value of $\frac{tan{60}^o-tan{30}^o}{tan{60}^o+tan{30}^o}$ Options:
  A) 1
  B) $\frac{1}{2}$
  C) $\frac{3}{\sqrt{3}}$
  D) $\frac{2}{\sqrt{3}}$
  Show Answer
  The correct answer is B .
• Question 164: A woman buys 270 oranges for ₦1800.00 and seels at 5 for ₦40.00. What is her profit? Options:
  A) ₦2,160.00
  B) ₦1, 620.00
  C) ₦630.00
  D) ₦360.00
  Show Answer
  The correct answer is D .
• Question 165: Find ($\frac{1}{0.06}÷\frac{1}{0.042}$)^-1 Options:
  A) 1.43
  B) 1.53
  C) 3.14
  D) 4.42
  Show Answer
  The correct answer is A .
• Question 166: Without using table, solve the equation 8x^-2 = $\frac{2}{25}$ Options:
  A) 4
  B) 6
  C) 8
  D) 10
  Show Answer
  The correct answer is D .
• Question 167: If x varies inversely as y, and y varies directly as the square root of z, and z varies directly $\frac{1}{w^2}$ write down in words how x varies with w Options:
  A) x varies inversely as w²
  B) x varies directly as w²
  C) x varies directly as w
  D) x varies inversely as w
  E) x varies directly as square root of w
  Show Answer
  The correct answer is B .
• Question 168:

  

  The result of rolling a fair die 150 times is ass summarized in the table above. What is the probability of obtaining a 5

  Options:
  A) ³/₁₀
  B) ¹/₅
  C) ¹/₆
  D) ¹/₁₀
  Show Answer
  The correct answer is B .
• Question 169: The ratio of the areas of similar triangles is necessarily equal to Options:
  A) the ratio of the corresponding sides
  B) the ratio of the squares on corresponsing sides
  C) the ratio of the corresponding heights of the triangles
  D) half the ratio of the corresponding heights of the triangles
  E) the ratio of the corresponding bases to the heights of the triangles
  Show Answer
  The correct answer is C .
• Question 170: Find the values of x for which the expression $\frac{(x-3)(x-2)}{x^2+x-2}$ Options:
  A) 1, -2
  B) -1, 2
  C) 2, 3
  D) -1. -2
  E) -2, -3
  Show Answer
  The correct answer is A .