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 1291: 3% of a family's income is spent on electricity, 58% on food, 20% on transport, 11% on education and 7% on extended family. The angles subtended at the centre of the pie chart under education and food are respectively Options:
  A) 76.8^o and 25.2^o
  B) 10.8^o and 224.6^o
  C) 112.4^o and 72.0^o
  D) 39.6^o and 212.4^o
  Show Answer
  The correct answer is D .
• Question 1292: If the volume of a hemisphere is increasing at a steady rate of 18π m/s, at what rate is its radius changing when its is 6m? Options:
  A) 2.30m/s
  B) 2.00 m/s
  C) 0.25 m/s
  D) 0.20 m/s
  Show Answer
  The correct answer is C .
• Question 1293: If P344₆ - 23P2₆ = 2PP2₆, find the value of the digit P. Options:
  A) 2
  B) 3
  C) 4
  D) 5
  Show Answer
  The correct answer is D .
• Question 1294:

  The angles of a polygon are given by 2x, 5x, x and 4x respectively. The value of x is

  Options:
  A) 31°
  B) 30°
  C) 26°
  D) 48°
  Show Answer
  The correct answer is B .
• Question 1295: Finds a positive value of p if the expression 2x² - px + p leaves a remainder 6 when divided by x - p and q Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .
• Question 1296: Make 'n' the subject of the formula if w = $\frac{v(2+cn)}{1-cn}$ Options:
  A) $\frac{1}{c}(\frac{w-2v}{v+w})$
  B) $\frac{1}{c}(\frac{w-2v}{v-w})$
  C) $\frac{1}{c}(\frac{w+2v}{v-w})$
  D) $\frac{1}{c}(\frac{w+2v}{v+w})$
  Show Answer
  The correct answer is A .
• Question 1297: Find the standard deviation of the numbers 6, 9, 10, 8 and 7 Options:
  A) 1.4
  B) 2
  C) 2.4
  D) 5
  E) 8
  Show Answer
  The correct answer is A .
• Question 1298:

  If P = [$\frac{Q(R-T)}{15}$] ${}^{\frac{1}{3}}$ make T the subject of the relation

  Options:
  A) T = $\frac{R+P^3}{15Q}$
  B) T = $\frac{R-15P^3}{Q}$
  C) T = $\frac{R-15P^3}{Q}$
  D) T = $\frac{15R-Q}{P^3}$
  Show Answer
  The correct answer is C .
• Question 1299: An arc subtends an angle of 50${}^{\circ }$ at the center of circle of radius 6cm. Calculate the area of the sector formed Options:
  A) ¹⁰⁰/₇
  B) ⁸⁰/₇
  C) ¹¹⁰/₇
  D) ⁹⁰/₇
  Show Answer
  The correct answer is C .
• Question 1300: If a car travels 120km on 45 litres of petrol, how much petrol is needed for a journey of 600km? Options:
  A) 720 litres
  B) 160 litres
  C) 225 litres
  D) 960 litres
  Show Answer
  The correct answer is C .