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 931: A solid sphere of radius 4cm has a mass of 64kg. What will be the mass of a shell of the same metal whose internal and external radii are 2cm and 3cm respectively? Options:
  A) 5kg
  B) 16kg
  C) 19kg
  D) 6kg
  Show Answer
  The correct answer is A .
• Question 932: A rectangular lawn has an area of 1815 square yards. if its length is 50 meters, find its width in meters given that 1 metre equals 1.1 yards Options:
  A) 39.93
  B) 35.00
  C) 33.00
  D) 30.00
  Show Answer
  The correct answer is C .
• Question 933: Convert 3.1415926 to 5 decimal places Options:
  A) 3.14160
  B) 3.14159
  C) 0.31415
  D) 3.14200
  Show Answer
  The correct answer is B .
• Question 934: A cylinder of height h and radius r is open at one end. Its surface area is Options:
  A) 2$\pi$rh
  B) $\pi$r²h
  C) 2$\pi$rh + $\pi$r²
  D) 2$\pi$rh + 2$\pi$r²
  Show Answer
  The correct answer is C .
• Question 935:

  At simple interest, a man made a deposit of some money in the bank. The amount in his bank account after 10 years is three times the money deposited. If the interest rate stays the same, after how many years will the amount be five times the money deposited?

  Options:
  A) 15 years
  B) 25 years
  C) 20 years
  D) 30 years
  Show Answer
  The correct answer is C .
• Question 936: If ⁿP₃ - 6(ⁿC₄) = 0, find the value of n Options:
  A) 5
  B) 6
  C) 7
  D) 8
  Show Answer
  The correct answer is C .
• Question 937: If M represents the median and D the mode of the measurements 5, 9, 3, 5, 8 then (M, D) is Options:
  A) (6, 5)
  B) (5, 8)
  C) (5, 7)
  D) (5, 5)
  E) (7, 5)
  Show Answer
  The correct answer is D .
• Question 938: The lengths of the sides of a right angled triangle are (3x + 1)cm, (3x - 1)cm and xcm. Find x Options:
  A) 2
  B) 6
  C) 18
  D) 12
  E) 5
  Show Answer
  The correct answer is D .
• Question 939:
  

  The equation of the line in the graph is

  Options:
  A) 3y = 3x + 12
  B) 3y = 3x + 12
  C) 3y = -4x + 12
  D) 3y = -4x + 9
  Show Answer
  The correct answer is C .
• Question 940:

  A bricklayer charges ₦1,500 per day for himself and ₦500 per day for his assistant. If a two bedroom flat was built for ₦95,000 and the bricklayer worked 10 days more than his assistant, how much did the assistant receive?

  Options:
  A) N20,000
  B) N28,000
  C) N31,200
  D) N41,000
  Show Answer
  The correct answer is A .