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 1341: the derivative of cosec x is Options:
  A) tan x cosec x
  B) -cot x cosec x
  C) tan x sec x
  D) -cot x sec x
  Show Answer
  The correct answer is B .
• Question 1342:

  

  The pie chart above represents 400 fruits on display n a grocery store. How many apples are in the store

  Options:
  A) 45
  B) 50
  C) 60
  D) 75
  Show Answer
  The correct answer is B .
• Question 1343: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 1344: The sum of the first n positive integers is Options:
  A) ¹/₂ n(n-1)
  B) n(n+1)
  C) n(n-1)
  D) ¹/₂ n(n-1)
  Show Answer
  The correct answer is D .
• Question 1345: 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 1346:

  

  The histogram above shows the distribution of monthly incomes of the workers in a company. How many workers earn more than ₦700.00?

  Options:
  A) 16
  B) 12
  C) 8
  D) 6
  Show Answer
  The correct answer is B .
• Question 1347: What is the volume of a cube if the diagonal of one of the sides is $\sqrt{50}$cm? Options:
  A) 7.07cm${}^3$
  B) 50.0cm${}^3$
  C) 125.0cm${}^3$
  D) 353.4cm${}^3$
  E) 625.0cm${}^3$
  Show Answer
  The correct answer is C .
• Question 1348: 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 1349: find the radius of a sphere whose surface area is 154cm² ($\pi =\frac{22}{7}$) Options:
  A) 7.00cm
  B) 3.50cm
  C) 3.00cm
  D) 1.75cm
  Show Answer
  The correct answer is B .
• Question 1350:

  If a dress is sold for #3800.00 at 20% discount. what is its original price?

  Options:
  A) #3,000.00
  B) #4,000.00
  C) #5,000.00
  D) #4,750.00
  Show Answer
  The correct answer is D .