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 1171:

  Evaluate 2700 000 x 0.03 ÷  18 000

  Options:
  A) 4.5 x 10^o
  B) 4.5 x 10¹
  C) 4.5 x 10²
  D) 4.5 x 10³
  Show Answer
  The correct answer is A .
• Question 1172:

  Differentiate $\frac{2x}{\sin x}$ with respect to x.

  Options:
  A) $2\cot x\sec x(1+\tan x)$
  B) $2\csc x-x\cot x$
  C) $2x\csc x+\tan x$
  D) $2\csc x(1-x\cot x)$
  Show Answer
  The correct answer is D .
• Question 1173: Evaluate (1/2 - 1/4 - 1/8 - 1/16 + ...) - 1 Options:
  A) 2/3
  B) zero
  C) -2/3
  D) -1
  Show Answer
  The correct answer is C .
• Question 1174: Simplify 5$\sqrt{18}$ - 3$\sqrt{72}$ + 4$\sqrt{50}$ Options:
  A) 17$\sqrt{4}$
  B) 4$\sqrt{17}$
  C) 17$\sqrt{2}$
  D) 12$\sqrt{4}$
  Show Answer
  The correct answer is C .
• Question 1175: x₁₀ = 1214₅ find x. Options:
  A) 124
  B) 184
  C) 121
  D) 180
  Show Answer
  The correct answer is B .
• Question 1176: A group of market women sell at least one of yam, plantain and maize. 12 of them sell maize, 10 sell yam and 14 sell plantain. 5 sell plantain and maize, 4 sell yam and maize, 2 sell yam and plantain only while 3 sell all the three items. How many women are in the group? Options:
  A) 25
  B) 19
  C) 18
  D) 17
  Show Answer
  The correct answer is A .
• Question 1177:

  

  In the diagram, angle QPR = 90${}^{\circ }$, angle PSR = 90${}^{\circ }$ and PR = 5 units. Find the length of QS.

  Options:
  A) 5 tan 25${}^{\circ }$ sin 65${}^{\circ }$
  B) 5 cos 25${}^{\circ }$ sin 65${}^{\circ }$
  C) 5 tan 25${}^{\circ }$ cos 65${}^{\circ }$
  D) cos 25${}^{\circ }$ cos 65${}^{\circ }$
  E) 5 cosec 25${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 1178: The angle of elevation of a building from a measuring instrument placed on the ground is 30^o. If the building is 40m high, how far is the instrument from the foot of the building? Options:
  A) $\frac{20}{\surd 3}$m
  B) $\frac{40}{\surd 3}$m
  C) 20√3m
  D) 40√3m
  Show Answer
  The correct answer is D .
• Question 1179: Evaluate ${\int }_1^3(X^2-1)dx$ Options:
  A) $\frac{2}{3}$
  B) $-\frac{2}{3}$
  C) $-6\frac{2}{3}$
  D) $6\frac{2}{3}$
  Show Answer
  The correct answer is D .
• Question 1180:

  

  The cumulative frequency curve above shoes the distribution of the scores of 50 students in an examination. Find the 36th percentile scores

  Options:
  A) 18%
  B) 28%
  C) 36%
  D) 50%
  Show Answer
  The correct answer is B .