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 671: Make T the subject of the equation $\frac{av}{1-v}$ = $\sqrt{\frac{2v+T}{a+2T}}$ Options:
  A) T = $\frac{3av}{1-v}$
  B) T = $\frac{1+v}{2a^2{v}^3}$
  C) T = $\frac{2v(1-v{)}^3-a^4{v}^3}{2a^3{v}^3+(1-v{)}^2}$
  D) $\frac{2v(1-v{)}^3-a^4{v}^3}{2a^3{v}^3-(1-v{)}^3}$
  Show Answer
  The correct answer is D .
• Question 672: If 9^{(x - $\frac{1}{2}$)} 3x² Options:
  A) $\frac{1}{2}$
  B) 1
  C) 2
  D) 3
  Show Answer
  The correct answer is B .
• Question 673:

  Find the range of values of t which satisfies the inequality.

  2t − 1 $\le$ 3 and 2− t $\ge$ 5

  Options:
  A) -3 $\le$ t $\le$ 1
  B) -2 $\le$ t $\le$ 3
  C) -3 $\le$ t $\le$ 4
  D) -3 $\le$ t $\le$ 2
  Show Answer
  The correct answer is D .
• Question 674: a senatorial candidate had planned to visit seven cities prior to a primary election. However, he could only visit four of the cities. How many different itineraries could be considered? Options:
  A) 840
  B) 720
  C) 640
  D) 520
  Show Answer
  The correct answer is A .
• Question 675: Evaluate correct to 4 decimal places 877.51 $\times$ 0.015 Options:
  A) 8.8415
  B) 12.4127
  C) 124.1265
  D) 12.44120
  E) 114.1265
  Show Answer
  The correct answer is B .
• Question 676: The sum to infinity of a geometric progression is $-\frac{1}{10}$ and the first term is $-\frac{1}{8}$. Find the common ratio of the progression. Options:
  A) $-\frac{1}{5}$
  B) $-\frac{1}{4}$
  C) $-\frac{1}{3}$
  D) $-\frac{1}{2}$
  Show Answer
  The correct answer is B .
• Question 677: For what value of x does 6 sin (2x - 25)^o attain its maximum value in the range 0^o $\le$ x $\le$ 180^o Options:
  A) 12$\frac{1}{2}$
  B) 32$\frac{1}{2}$
  C) 57$\frac{1}{2}$
  D) 147$\frac{1}{2}$
  Show Answer
  The correct answer is C .
• Question 678:

  

  In the figure, STQ = SRP, PT = TQ = 6cm and QS = 5cm. Find SR

  Options:
  A) $\frac{47}{5}$
  B) 5
  C) $\frac{32}{5}$
  D) $\frac{22}{5}$
  Show Answer
  The correct answer is A .
• Question 679:

  The probability of an outcome A is 1/6. The probability of the B outcome is 1/4. If the probability of A or B or both is 1/12, what is the probability of both outcomes A and B?

  Options:
  A) 1/2
  B) 1/3
  C) 2/5
  D) 3/4
  Show Answer
  The correct answer is B .
• Question 680:

  A rectangular picture 6cm by 8cm is enclosed by a frame $\frac{1}{2}$cm wide. Calculate the area of the frame.

  Options:
  A) 15sq.cm
  B) 20sq.cm
  C) 13sq.cm
  D) 16sq.cm
  Show Answer
  The correct answer is A .