Home ยป Past Questions ยป Mathematics ยป Waec ยป 2011 ยป Page 3
43

Factorize the expression: am + bn – an – bm

  • A. (a - b)(m + n)
  • B. (a - b)(m - n)
  • C. (a + b)(m - n)
  • D. (a + b)(m + n)
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44

What is the value of 3 in the number 42.7531?

  • A. \(\frac{3}{10000}\)
  • B. \(\frac{3}{1000}\)
  • C. \(\frac{3}{100}\)
  • D. \(\frac{1}{10}\)
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45

The height of a cylinder is equal to its radius. If the volume is 0.216 \(\pi m^3\) Calculate the radius.

  • A. 0.46m
  • B. 0.60m
  • C. 0.87m
  • D. 1.80m
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46

The height of a cylinder is equal to its radius. If the volume is 0.216 \(\pi\) m\(^3\). Calculate the radius.

  • A. 0.46m
  • B. 0.60m
  • C. 0.87m
  • D. 1.80m
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47

What is the value of 3 in the number 42.7531?

  • A. \(\frac{3}{10000}\)
  • B. \(\frac{3}{1000}\)
  • C. \(\frac{3}{100}\)
  • D. \(\frac{1}{10}\)
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48

The length of a piece of stick is 1.75m. A girl measured it as 1.80m. Find the percentage error

  • A. \(\frac{28}{7}\)%
  • B. \(\frac{29}{7}\)%
  • C. 5%
  • D. \(\frac{20}{7}\)%
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49

The perimeter of a sector of a circle of radius 4cm is (\(\pi + 8\))cm. Calculate the anle of the sector

  • A. 45o
  • B. 60o
  • C. 75o
  • D. 90o
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50

Which of these angles can be constructed using ruler and a pair of compasses only?

  • A. 115o
  • B. 125o
  • C. 135o
  • D. 145o
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51

Simplify \(\frac{\log \sqrt{27}}{\log \sqrt{81}}\)

  • A. 3
  • B. 2
  • C. \(\frac{3}{2}\)
  • D. \(\frac{3}{4}\)
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52

From the equation whose roots are x = \(\frac{1}{2}\) and -\(\frac{2}{3}\)

  • A. 6x2 - x + 2 = 0
  • B. 6x2 - x - 2 = 0
  • C. 6x2 + x + 2 = 0
  • D. 6x2 + x - 2 = 0
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53

The cross section section of a uniform prism is a right-angled triangle with sides 3cm. 4cm and 5cm. If its length is 10cm. Calculate the total surface area

  • A. 142cm2
  • B. 132cm2
  • C. 122cm2
  • D. 112cm2
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54

Esther was facing S 20ยฐ W. She turned 90ยฐ in the clock wise direction. What direction is she facing?

  • A. N 70o W
  • B. S 70o W
  • C. N 20o W
  • D. S 20o E
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55

A regular polygon of n sides has each exterior angle to 45o. Find the value of n

  • A. 6
  • B. 8
  • C. 12
  • D. 15
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56

A cylindrical container has a base radius of 14cm and height 18cm. How many litres of liquid can it hold? correct to the nearest litre [Take \(\pi = \frac{22}{7}\)]

  • A. 11
  • B. 14
  • C. 16
  • D. 18
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57

One of the factors of (mn – nq – n\(^2\) + mq) is (m – n). The other factor is?

  • A. (n - q)
  • B. (q - n)
  • C. (n + q)
  • D. (q - m)
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58

If a number is chosen at random from the set {x: 4 \(\leq x \leq 15\)}. Find the probability that it is a multiple of 3 or a multiple of 4

  • A. \(\frac{1}{12}\)
  • B. \(\frac{5}{12}\)
  • C. \(\frac{7}{12}\)
  • D. \(\frac{11}{12}\)
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59

Solve the equation; 3x – 2y = 7, x + 2y = -3

  • A. x = 1, y = -2
  • B. x = 1, y = 3
  • C. x = -2, y = -1
  • D. x = 4, y = -3
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60

Given that cos xo = \(\frac{1}{r}\), express tan x in terms of r

  • A. \(\frac{1}{\sqrt{r}}\)
  • B. \(\sqrt{r}\)
  • C. \(\sqrt{r^2 + 1}\)
  • D. \(\sqrt{r^2 - 1}\)
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61

Solve for x in the equation; \(\frac{3}{5}\)(2x – 1) = \(\frac{1}{4}\)(5x – 3)

  • A. zero
  • B. 1
  • C. 2
  • D. 3
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62

If N112.00 exchanges for D14.95, calculate the value of D1.00 in naira

  • A. 0.13
  • B. 7.49
  • C. 8.00
  • D. 13.00
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