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 661: Make Q the subject of formula if p = $\frac{M}{5}$(X + Q) + 1 Options:
  A) $\frac{5P-MX+5}{M}$
  B) $\frac{5P-MX-5}{M}$
  C) $\frac{5P+MX+5}{M}$
  D) $\frac{5P+MX-5}{M}$
  Show Answer
  The correct answer is B .
• Question 662: An arc of circle of radius 2cm subtends an angle of 60^o at the centre. Find the area of the sector Options:
  A) $\frac{2\pi }{3}$cm²
  B) $\frac{\pi }{2}$cm²
  C) $\frac{\pi }{3}$cm²
  D) $\pi$cm²
  Show Answer
  The correct answer is A .
• Question 663: A man sells his new brand car for ₦420,000 at a gain of 15%. What did it cost him? Options:
  A) ₦410,000
  B) ₦365,217
  C) ₦157,250
  D) ₦257,000
  Show Answer
  The correct answer is B .
• Question 664:

  $\begin{array}{cccccc}\text{Class Interval}& 1-5& 6-10& 11-15& 16-20& 21-25\\ Frequency& 6& 15& 20& 7& 2\end{array}$

  Estimate the median of the frequency distribution above

  Options:
  A) 10$\frac{1}{2}$
  B) 11$\frac{1}{2}$
  C) 12
  D) 13
  Show Answer
  The correct answer is C .
• Question 665:

  Simplify $\frac{1}{3-\surd 2}$ in the form of p + q√2

  Options:
  A) $\frac{7}{3}$ - $\frac{1}{7\surd 2}$
  B) $\frac{7}{3}$ + $\frac{1}{7\surd 2}$
  C) $\frac{3}{7}$ - $\frac{1}{7\surd 2}$
  D) $\frac{3}{7}$ + $\frac{\surd 2}{7}$
  Show Answer
  The correct answer is D .
• Question 666: After getting a rise of 15%, a man's new monthly salary is ₦345. How much per month did he earn before the increase? Options:
  A) ₦330
  B) n396.75
  C) ₦300
  D) ₦293.25
  E) ₦360
  Show Answer
  The correct answer is C .
• Question 667: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 668: The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number Options:
  A) 3
  B) 16
  C) 18
  D) 38
  Show Answer
  The correct answer is D .
• Question 669: make U the subject of the formula S = $\sqrt{\frac{6}{u}-\frac{w}{2}}$ Options:
  A) u = $\frac{12}{2s^2}$
  B) u = $\frac{12}{2s+w}$
  C) u = $\frac{12}{2s^2+w}$
  D) u = $\frac{12}{2s^2}$ + w
  Show Answer
  The correct answer is C .
• Question 670: Express the product of 0.0014 and 0.011 in standard form Options:
  A) 1.54 x 10^-2
  B) 1.54 x 10^-3
  C) 1.54 x 10^-4
  D) 1.54 x 10^-5
  Show Answer
  The correct answer is D .