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 2231: 2 bags of sugar at N_x per bag are mixed with 3 bags of sugar at N_y per bag. What is the cost in N of the mixture per bag? Options:
  A) $\frac{(2x+3y)}{5}$
  B) $\frac{(x+y)}{2}$
  C) $\frac{x}{2}+\frac{y}{3}$
  D) $\frac{(x+y)}{5}$
  E) $\frac{(3x+2y)}{5}$
  Show Answer
  The correct answer is A .
• Question 2232: A student blows a balloon and its volume increases at a rate of $\pi$(20 - t²)cm³S^-1 after t seconds. If the initial volume is 0 cm³, find the volume of the balloon after 2 seconds Options:
  A) 37.00$\pi$
  B) 37.33$\pi$
  C) 40.00$\pi$
  D) 42.67$\pi$
  Show Answer
  The correct answer is B .
• Question 2233: A worker's present salary is ₦24,000 per annum. His annual increment is 10% of his basic salary at the beginning of the third year? Options:
  A) ₦28,800
  B) ₦29,040
  C) ₦31,200
  D) ₦31,944
  Show Answer
  The correct answer is B .
• Question 2234: Solve the quadratic inequalities x² - 5x + 6 ≥0 Options:
  A) x ≤ 2, x ≥ 3
  B) x ≤ 3, x ≥ 2
  C) x ≤ -2, x ≥ -3
  D) x ≤-3, x ≥ 2
  Show Answer
  The correct answer is A .
• Question 2235: A point P moves so that is equidistant from point L and M. If LM is 6cm, find the distance of P from LM when P is 10cm from L Options:
  A) 12cm
  B) 10cm
  C) 8cm
  D) 6cm
  Show Answer
  The correct answer is D .
• Question 2236: 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 2237: A man wishes to keep his money in a savings deposit at 25% compound interest so that after three years he can buy a car for ₦150,000. How much does he need to deposit? Options:
  A) ₦112,000.50
  B) ₦96,000.00
  C) ₦85,714.28
  D) ₦76,800.00
  Show Answer
  The correct answer is D .
• Question 2238: Make Q the subject of formula if p = $\frac{M}{5}$(X + Q) + 1 Options:
  A) $\frac{5P-MX+5}{M}$
  B) $\frac{5P-MX-5}{M}$
  C) $\frac{5P+MX+5}{M}$
  D) $\frac{5P+MX-5}{M}$
  Show Answer
  The correct answer is B .
• Question 2239: Three angles of a nonagon are equal and the sum of six other angles is 110^o. Calculate the sixe of one of the equal angles Options:
  A) 210^o
  B) 150^o
  C) 105^o
  D) 50^o
  Show Answer
  The correct answer is D .
• Question 2240:

  Let (*) be a binary operation on a natural number defined by a * b = a - b + (ab)${}^2$, then find 3 * 5

  Options:
  A) 223
  B) 232
  C) 32
  D) -232
  Show Answer
  The correct answer is A .