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 1461:

  

  An unbiased die is rolled 100 times and the outcome is tabulated above.

  What is the probability of obtaining a 5?

  Options:
  A) 1/5
  B) 1/2
  C) 1/6
  D) 1/4
  Show Answer
  The correct answer is A .
• Question 1462:

  

  In the diagram, QP//ST:PQR = 34${}^{\circ }$ QRS = 73${}^{\circ }$ and RS = RT. Find SRT

  Options:
  A) 68${}^{\circ }$
  B) 102${}^{\circ }$
  C) 107${}^{\circ }$
  D) 141${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 1463: An $(n-2{)}^2$ sided figure has n diagonals, find the number n of diagonals for a 25 sided figure Options:
  A) 8
  B) 7
  C) 6
  D) 9
  E) 10
  Show Answer
  The correct answer is B .
• Question 1464: The binary operation $\oplus$ defined on the set of real numbers is such that x $\oplus$ y = $\frac{xy}{6}$ for all x, y $ϵ$ R. Find the inverse of 20 under this operation when the identity element is 6 Options:
  A) $\frac{9}{5}$
  B) $\frac{1}{20}$
  C) $\frac{10}{3}$
  D) $\frac{1}{12}$
  Show Answer
  The correct answer is B .
• Question 1465:

  

  The pie chart above shows the expenditure of a family whose income is N30.000. If the expenditure on food is twice that on housing and that on school fees is twice that on transport, how much does the family spend on food?

  Options:
  A) N28,000
  B) N12,500
  C) N15,000
  D) N25,000
  Show Answer
  The correct answer is B .
• Question 1466: 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 1467:

  Give the number of significant figures of the population of a town which has approximately 5,020,700 people

  Options:
  A) 7 significant figures
  B) 3 significant figures
  C) 4 significant figures
  D) 5 significant figures
  Show Answer
  The correct answer is D .
• Question 1468:

  No. of days	1	2	3	4	5	6
  No. of students	20	x	50	40	2x	60

  The distribution above shows the number of days a group of 260 students were absents from school in a particular term. How many students were absent for at least four days in the term

  Options:
  A) 210
  B) 40
  C) 120
  D) 160
  Show Answer
  The correct answer is D .
• Question 1469:

  

  In the frustum of the cone, the top diagram is twice the bottom diameter. If the height of the frustum is h centimeters, find he height of the cone.

  Options:
  A) 2h
  B) 2$\pi$h
  C) $\pi$h
  D) $\frac{\pi h}{2}$
  Show Answer
  The correct answer is A .
• Question 1470:

  

  In the diagram above, a cylinder is summounted by a hemisphere bowl. Calculate the volume of the solid.

  Options:
  A) 180 πcm³
  B) 162 πcm³
  C) 216 πcm³
  D) 198 πcm³
  Show Answer
  The correct answer is D .