JAMB - Mathematics (2011)

  • 1
    If 2q35 = 778, find q
    תְשׁוּבָה
    (A)
    2
  • 2
    Simplify \(\frac{3\frac{2}{3} \times \frac{5}{6} \times \frac{2}{3}}{\frac{11}{15} \times \frac{3}{4} \times \frac{2}{27}}\)
    תְשׁוּבָה
    (D)
    50
  • 3
    A man invested N5,000 for 9 months at 4%. What is the simple interest?
    תְשׁוּבָה
    (A)
    N150
  • 4
    If the numbers M, N, Q are in the ratio 5:4:3, find the value of \(\frac{2N - Q}{M}\)
    תְשׁוּבָה
    (C)
    1
  • 5
    Simplify \((\frac{16}{81})^{\frac{1}{4}} \div (\frac{9}{16})^{-\frac{1}{2}}\)
    תְשׁוּבָה
    (B)
    \(\frac{1}{2}\)
  • 6
    If log318 + log33 - log3x = 3, Find x.
    תְשׁוּבָה
    (B)
    2
  • 7
    Rationalize \(\frac{2 - \sqrt5}{3 - \sqrt5}\)
    תְשׁוּבָה
    (B)
    \(\frac{1 - \sqrt5}{4}\)
  • 8
    Simplify (\(\sqrt2 + \frac{1}{\sqrt3})(\sqrt2 - \frac{1}{\sqrt3}\))
    תְשׁוּבָה
    (B)
    \(\frac{5}{3}\)
  • 9
    Raial has 7 different posters to be hanged in her bedroom, living room and kitchen. Assuming she has plans to place at least a poster in each of the 3 rooms, how many choices does she have?
    תְשׁוּבָה
    (D)
    210
  • 10
    Make R the subject of the formula if T = \(\frac {KR^2 + M}{3}\)
    תְשׁוּבָה
    (B)
    \(\sqrt\frac{3T - M}{K}\)
  • 11
    Find the remainder when X3 - 2X2 + 3X - 3 is divided by X2 + 1
    תְשׁוּבָה
    (A)
    2X - 1
  • 12
    Factorize completely 9y2 - 16X2
    תְשׁוּבָה
    (D)
    (3y - 4x)(3y + 4x)
  • 13
    Solve for x and y respectively in the simultaneous equations -2x - 5y = 3. x + 3y = 0
    תְשׁוּבָה
    (C)
    -9,3
  • 14
    If x varies directly as square root of y and x = 81 when y = 9, Find x when y = 1\(\frac{7}{9}\)
    תְשׁוּבָה
    (D)
    36
  • 15
    T varies inversely as the cube of R. When R = 3, T = \(\frac{2}{81}\), find T when R = 2
    תְשׁוּבָה
    (B)
    \(\frac{1}{12}\)
  • 16
    Solve the inequality -6(x + 3) \(\leq\) 4(x - 2)
    תְשׁוּבָה
    (B)
    x \(\geq\) -1
  • 17
    Solve the inequality x2 + 2x > 15.
    תְשׁוּבָה
    (B)
    -5 < x < 3
  • 18
    Find the sum of the first 18 terms of the series 3, 6, 9,..., 36.
    תְשׁוּבָה
    (B)
    513
  • 19
    The seconds term of a geometric series is 4 while the fourth term is 16. Find the sum of the first five terms
    תְשׁוּבָה
    (B)
    62
  • 20
    A binary operation \(\oplus\) om real numbers is defined by x \(\oplus\) y = xy + x + y for two real numbers x and y. Find the value of 3 \(\oplus\) - \(\frac{2}{3}\).
    תְשׁוּבָה
    (B)
    \(\frac{1}{3}\)
  • 21
    If \(\begin{vmatrix} 2 & 3 \\ 5 & 3x \end{vmatrix}\) = \(\begin{vmatrix} 4 & 1 \\ 3 & 2x \end{vmatrix}\), find the value of x. 
    תְשׁוּבָה
    (A)
    -6
  • 22
    Evaluate \(\begin{vmatrix} 4 & 2 & -1 \\ 2 & 3 & -1 \\ -1 & 1 & 3 \end{vmatrix}\)
    תְשׁוּבָה
    (A)
    25
  • 23
    The inverse of matrix N = \(\begin{vmatrix} 2 & 3 \\
    1 & 4\end{vmatrix}\) is
    תְשׁוּבָה
    (B)
    \(\frac{1}{5}\) \(\begin{vmatrix} 4 & -3 \\ -1 & 2\end{vmatrix}\)
  • 24
    What is the size of each interior angle of a 12-sided regular polygon?
    תְשׁוּבָה
    (B)
    150o
  • 25
    A chord of circle of radius 7cm is 5cm from the centre of the circle.What is the length of the chord?
    תְשׁוּבָה
    (A)
    4√6 cm
  • 26
    A solid metal cube of side 3 cm is placed in a rectangular tank of dimension 3, 4 and 5 cm. What volume of water can the tank now hold
    תְשׁוּבָה
    (B)
    33 cm3
  • 27
    The perpendicular bisector of a line XY is the locus of a point 
    תְשׁוּבָה
    (D)
    which is equidistant from the points X and Y
  • 28
    The midpoint of P(x, y) and Q(8, 6) is (5, 8). Find x and y.
    תְשׁוּבָה
    (A)
    (2, 10)
  • 29
    Find the equation of a line perpendicular to line 2y = 5x + 4 which passes through (4, 2).
    תְשׁוּבָה
    (B)
    5y + 2x - 18 = 0
  • 30
    In a right angled triangle, if tan \(\theta\) = \(\frac{3}{4}\). What is cos\(\theta\) - sin\(\theta\)?
    תְשׁוּבָה
    (C)
    \(\frac{1}{5}\)
  • 31
    A man walks 100 m due West from a point X to Y, he then walks 100 m due North to a point Z. Find the bearing of X from Z.
    תְשׁוּבָה
    (B)
    135o
  • 32
    The derivatives of (2x + 1)(3x + 1) is
    תְשׁוּבָה
    (D)
    12x + 5
  • 33
    \(\begin{array}{c|c} Class Intervals & 0 - 2 & 3 - 5 & 6 - 8 & 9 - 11 & \\ \hline Frequency & 3 & 2 & 5 & 3 &\end{array}\)
    Find the mode of the above distribution.
    תְשׁוּבָה
    (D)
    7
  • 34
    Find the value of x at the minimum point of the curve y = x3 + x2 - x + 1
    תְשׁוּבָה
    (A)
    \(\frac{1}{3}\)
  • 35
    Evaluate \(\int^{1}_{0}\)(3 - 2x)dx
    תְשׁוּבָה
    (C)
    2
  • 36
    Find \(\int\) cos4 x dx
    תְשׁוּבָה
    (D)
    \(\frac{1}{4}\) sin 4x + k
  • 37
    The sum of four consecutive integers is 34. Find the least of these numbers
    תְשׁוּבָה
    (A)
    7
  • 38
    \(\begin{array}{c|c} No & 0 & 1 & 2 & 3 & 4 & 5 \\ \hline Frequency & 1 & 4 & 3 & 8 & 2 & 5 \end{array}\). From the table above, find the median and range of the data respectively.
    תְשׁוּבָה
    (B)
    (3, 5)
  • 39
    \(\begin{array}{c|c}
    Class Interval & 3 - 5 & 6 - 8 & 9 - 11 \\ \hline Frequency & 2 & 2 & 2 \end{array}\). Find the standard deviation of the above distribution.
    תְשׁוּבָה
    (B)
    √6
  • 40
    In how many was can the letters of the word ELATION be arranged?
    תְשׁוּבָה
    (B)
    7!
  • 41
    In how many ways can five people sit round a circular table?
    תְשׁוּבָה
    (A)
    24
  • 42
    Find the probability that a number picked at random from the set(43, 44, 45, ..., 60) is a prime number.
    תְשׁוּבָה
    (C)
    \(\frac{2}{9}\)
  • 43
    Find the derivative of \(\frac {\sin\theta}{\cos\theta}\)
    תְשׁוּבָה
    (A)
    sec2 \(\theta\)
  • 44

    From the venn diagram above, the complement of the set P\(\cap\)Q is given by

    תְשׁוּבָה
    (A)
    {a, b, d, e}
  • 45

    The pie chart shows the distribution of courses offered by students. What percentage of the students offer English?

    תְשׁוּבָה
    (B)
    25%