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 751: 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 752: 7 pupils of average age 12 years leave a class of 25 pupils of average age 14 years. If 6 new pupils of average age 11years join the class, what is the average age of the pupils now in the class? Options:
  A) 13years
  B) 12 years 7$\frac{1}{2}$ months
  C) 13 years 5 months
  D) 13 years 10 months
  E) 11 years
  Show Answer
  The correct answer is D .
• Question 753:

  It takes 12 men 8 hours a day to finish a piece of work in 4 days. In how many days will it take 4 men working 16 hours a day to complete the same piece of work?

  Options:
  A) 6 days
  B) 8 days
  C) 10 days
  D) 12 days
  Show Answer
  The correct answer is A .
• Question 754: How many three-digit numbers can be formed from 32564 without repeating any of the digits? Options:
  A) 120
  B) 10
  C) 20
  D) 60
  Show Answer
  The correct answer is D .
• Question 755:

  Simplify $\frac{324-4x^2}{2x+18}$

  Options:
  A) 2(x - 9)
  B) 2(9 + x)
  C) 81 - x${}^2$
  D) -2(x - 9)
  Show Answer
  The correct answer is D .
• Question 756:

  

  The graph above is represented by

  Options:
  A) y = x³ - 3x - 2
  B) y = x³ + 2x² - x - 2
  C) y = x³ - 4x² + 5x - 2
  D) y = x³ - 4x + 2
  Show Answer
  The correct answer is B .
• Question 757: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 758: If 2257 is the result of subtracting 4577 from 7056 in base n, find n Options:
  A) 8$\frac{17}{30}$
  B) 9$\frac{9}{10}$
  C) 10$\frac{1}{10}$
  D) 11$\frac{11}{36}$
  Show Answer
  The correct answer is A .
• Question 759: Marks scored by some children in an arithmetic test are:5, 3, 6, 9, 4, 7, 8, 6, 2, 7, 8, 4, 5, 2, 1, 0, 6, 9, 0, 8.
  The arithmetic mean of the marks is Options:
  A) 6
  B) 5
  C) 8
  D) 7
  E) 10
  Show Answer
  The correct answer is B .
• Question 760: p varies directly as the square of q and inversely as r. If p = 36, when q = 36, when q = 3 and r = 4, find p when q = 5 and r = 2 Options:
  A) 72
  B) 100
  C) 90
  D) 200
  E) 125
  Show Answer
  The correct answer is D .