If the simple interest on a sum of money invested at 3% per annum for 2\(\frac{1}{2}\) years is N123, find the principal.
- A. N676.50
- B. N820
- C. N1,640
- D. N4,920
What is the place value of 9 in the number 3.0492?
- A. \(\frac{9}{10000}\)
- B. \(\frac{9}{1000}\)
- C. \(\frac{9}{100}\)
- D. \(\frac{9}{10}\)
Given that (2x – 1)(x + 5) = 2x2 – mx – 5, what is the value of m
- A. 11
- B. 5
- C. -9
- D. -10
What must be added to x2 – 3x to make it a perfect square?
- A. \(\frac{9}{4}\)
- B. \(\frac{9}{2}\)
- C. 6
- D. 9
\(\begin{array}{c|c} x & 1 & 4 & p \\ \hline y & 0.5 & 1 & 2.5\end{array}\). The table below satisfies the relation y = k\(\sqrt{x}\), where k is a positive constant. Find the value of P,
- A. 2
- B. 4
- C. 10
- D. 25
\(\begin{array}{c|c} x & 1 & 4 & p \\ \hline y & 0.5 & 1 & 2.5\end{array}\). The table above satisfies the relation y = k\(\sqrt{x}\), where k is a positive constant. Find the value of K.
- A. 0.5
- B. 1
- C. 1.5
- D. 2
The ratio of boys to girls in a class is 5:3. Find the probability of selecting at random, a girl from the class
- A. \(\frac{1}{8}\)
- B. \(\frac{1}{3}\)
- C. \(\frac{3}{8}\)
- D. \(\frac{3}{5}\)
If tan y = 0.404, where y is acute, find cos 2y
- A. 0.035
- B. 0.719
- C. 0.808
- D. 0.927
A baker used 40% of a 50kg bag of flour. If \(\frac{1}{8}\) of the amount used was for the cake, how many kilogram of flour was used for the cake?
- A. 2\(\frac{1}{2}\)
- B. 6\(\frac{1}{2}\)
- C. 15\(\frac{3}{8}\)
- D. 17\(\frac{1}{2}\)
If 30% of y is equal to x, what in terms of x, is 30% of 3y?
- A. \(\frac{x}{9}\)
- B. \(\frac{x}{3}\)
- C. x
- D. 3x
A fair coin is tossed three times. Find the probability of getting two heads and one tail.
- A. \(\frac{1}{2}\)
- B. \(\frac{3}{8}\)
- C. \(\frac{1}{4}\)
- D. \(\frac{1}{8}\)
P is a point on the same plane with a fixed point A. If P moves such that it is always equidistant from A, the locus of P is
- A. a straight line joining A and P
- B. the perpendicular bisector of AP
- C. a circle with centre A
- D. the triangle with centre P
Given that y = 1 – \(\frac{2x}{4x – 3}\), find the value of x for which y is undefined
- A. 3
- B. \(\frac{3}{4}\)
- C. \(\frac{-3}{4}\)
- D. -3
Simplify \(\frac{x – 4}{4} – \frac{x – 3}{6}\)
- A. \(\frac{x - 18}{12}\)
- B. \(\frac{x - 6}{12}\)
- C. \(\frac{x - 18}{24}\)
- D. \(\frac{x - 6}{24}\)
Simplify \(\frac{25 ^\frac{2}{3} \div 25 ^\frac{1}{6}}{( \frac{1}{5})^{-\frac{7}{6}} \times ( \frac{1}{5})^{\frac{1}{6}}}\)
- A. 25
- B. \(\frac{1}{5}\)
- C. 1
- D. \(\frac{1}{25}\)
Simplify: 11011\(_2\) – 1101\(_2\)
- A. 101000\(_2\)
- B. 1100\(_2\)
- C. 1110\(_2\)
- D. 1011\(_2\)
Evaluate (0.13)\(^3\)correct to three significant figures
- A. 0.00219
- B. 0.00220
- C. 0.00300
- D. 0.00390