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 1151: Simplify $\frac{3^n-3^{n-1}}{3^3\times 3^n-27\times 3^{n-1}}$ Options:
  A) 1
  B) 6
  C) $\frac{1}{27}$
  D) $\frac{4}{3}$
  Show Answer
  The correct answer is C .
• Question 1152: If 3 boys shared x oranges among themselves in the ratio 3:5:8, and smallest share was 45 oranges, find the value of x Options:
  A) 75
  B) 120
  C) 165
  D) 195
  E) 240
  Show Answer
  The correct answer is E .
• Question 1153: The volume of a cone (s) of height 6cm and base radius 5cm is Options:
  A) 157cm³
  B) 155cm³
  C) 175cm³
  D) 145cm³
  Show Answer
  The correct answer is A .
• Question 1154: If $\left|\begin{array}{cc}5& 3\\ x& 2\end{array}\right|$ = $\left|\begin{array}{cc}3& 5\\ 4& 5\end{array}\right|$, find the value of x Options:
  A) 3
  B) 4
  C) 5
  D) 7
  Show Answer
  The correct answer is C .
• Question 1155: Evaluate $\frac{6.3\times {10}^5}{81\times {10}^3}$ to 3 significant fiqures Options:
  A) 77.80
  B) 778.0
  C) 7.870
  D) 8.770
  E) 88.70
  Show Answer
  The correct answer is A .
• Question 1156: Find the mean deviation of 2, 4, 5, and 9 Options:
  A) 1
  B) 2
  C) 5
  D) 7
  Show Answer
  The correct answer is B .
• Question 1157: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 1158:

  In a class of 40 students, 32 offer Mathematics, 24 offer Physics and 4 offer neither Mathematics nor Physics. How many offer both Mathematics and Physics?

  Options:
  A) 4
  B) 8
  C) 16
  D) 20
  Show Answer
  The correct answer is D .
• Question 1159:

  

  What is the volume of this regular three dimensional figure?

  Options:
  A) 160cm²
  B) 48cm²
  C) 120cm²
  D) 40cm²
  Show Answer
  The correct answer is B .
• Question 1160: Find correct to 3 decimal places ($\frac{1}{0.05}$ + $\frac{1}{5.005}$) - (0.05 x 2.05) Options:
  A) 99.998
  B) 98.999
  C) 89.899
  D) 9.998
  Show Answer
  The correct answer is A .