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 521: What is the Value Of 11101${}_{two}$+ 10011${}_{two}$ - 10001${}_{two}$ Options:
  A) 10001${}_{two}$
  B) 10011${}_{two}$
  C) 10111${}_{two}$
  D) 11111${}_{two}$
  E) 111111${}_{two}$
  Show Answer
  The correct answer is E .
• Question 522: Calculate the length in cm. of the area of a circle of diameter 8cm which subtends an angle of 22$\frac{1}{2}$^o at the centre of the circle Options:
  A) 2$\pi$
  B) $\pi$
  C) $\frac{2}{3}$
  D) $\frac{\pi }{2}$
  Show Answer
  The correct answer is D .
• Question 523: If log7.5 = 0.8751, evaluate 2 log75 + log750 Options:
  A) 6.6252
  B) 6.6253
  C) 66.252
  D) 66.253
  Show Answer
  The correct answer is B .
• Question 524: A cone was developed from a sector of a circle with radius10cm and an angle at the centre of 108°. What is the radius of the cone? Options:
  A) 9.0cm
  B) 8.5cm
  C) 7.2cm
  D) 4.3cm
  E) 3.0cm
  Show Answer
  The correct answer is E .
• Question 525: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 526:

  

  In the figure below, /MX/ = 8cm, /XN/ = 12cm, /NZ/ = 4cm and ∠ XMN = ∠ XZY. Calculate /YM/

  Options:
  A) 32 cm
  B) 24 cm
  C) 16 cm
  D) 12 cm
  Show Answer
  The correct answer is C .
• Question 527:

  

  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 528:

  The table shown gives the marks scored by a group of student in a test. Use the table to answer the question given.

  Mark	0	1	2	3	4	5
  Frequency	1	2	7	5	4	3

  What is the probability of selecting a student from the group that scored 2 or 3?

  Options:
  A) $\frac{1}{11}$
  B) $\frac{5}{22}$
  C) $\frac{7}{22}$
  D) $\frac{6}{11}$
  Show Answer
  The correct answer is D .
• Question 529: If 27^{x + 2} $÷$ 9^{x + 1} = 3^2x, find x Options:
  A) 3
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 530: express 62 $÷$ 3 as a decimal correct to 3 significant figures Options:
  A) 20.6
  B) 20.667
  C) 20.67
  D) 20.7
  Show Answer
  The correct answer is D .