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 821: If the value of is taken to be $\frac{22}{7}$, the area of a semi-circle of diameter 42m is Options:
  A) 5544m²
  B) 1386m²
  C) 132m²
  D) 264m²
  E) 693m²
  Show Answer
  The correct answer is E .
• Question 822:

  Simplify $\frac{0.0839\times 6.381}{5.44}$ to 2 significant figures.

  Options:
  A) 0.2809
  B) 2.51
  C) 3.5
  D) 0.098
  Show Answer
  The correct answer is D .
• Question 823: A bucket is 12 cm in diameter at the top, 8 cm in diameterat the bottom and 4 cm deep. Calculate its volume. Options:
  A) 304π/3 cm³
  B) 144π cm³
  C) 128π cm³
  D) 72π cm³
  Show Answer
  The correct answer is A .
• Question 824: If y = 3t³ + 2t² - 7t + 3, find $\frac{dy}{dt}$ at t = -1 Options:
  A) -1
  B) 1
  C) -2
  D) 2
  Show Answer
  The correct answer is C .
• Question 825:

  

  In the figure, PQ\SR, ST\, ST\RQ, PS = 7cm, PT = 7cm, SR = 4cm. Find the ratio of the area QRST to the area of PQRS.

  Options:
  A) 56.77
  B) 56.105
  C) 28:105
  D) 28:49
  E) 56:49
  Show Answer
  The correct answer is B .
• Question 826: 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 827: The shadow of a pole 5√3m high is 5m. Find the angle of elevation of the sun. Options:
  A) 45${}^{\circ }$
  B) 75${}^{\circ }$
  C) 30${}^{\circ }$
  D) 60${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 828:

  Simplify 2log $\frac{2}{5}$ - log$\frac{72}{125}$ + log 9

  Options:
  A) 1 - 4 log3
  B) -1 + 2 log 3
  C) -1 + 5 log2
  D) 1 - 2log 2
  Show Answer
  The correct answer is D .
• Question 829:

  

  The diagram above is the graph of y = x², the shaded area is

  Options:
  A) 64 square units
  B) ¹²⁸/₃ square units
  C) ⁶⁴/₃ square units
  D) 32 square units
  Show Answer
  The correct answer is C .
• Question 830: The locus of a dog tethered to a pole with a rope of 4m is a Options:
  A) circle with diameter 4m
  B) circle with radius 4m
  C) semi-circle with diameter 4m
  D) semi-circle with radius 4m
  Show Answer
  The correct answer is B .