Express 2.7864 x 10-3 to 2 significant figures
- A. 0.28
- B. 0.27
- C. 0.0028
- D. 0.0027
What is the median of the following scores: 22 35 41 63 74 82
- A. 82
- B. 52
- C. 49
- D. 22
In an examination, Kofi scored x% in Physics, 50% in Chemistry and 70% in Biology. If his mean score for the three subjects was 55%, find x
- A. 40
- B. 45
- C. 55
- D. 60
Given that sin 60o = \(\frac{\sqrt{3}}{2}\) and cos 60o = \(\frac{1}{2}\), evaluate \(\frac{1 – sin 60^o}{1 + cos 60^o}\)
- A. \(\frac{2 + \sqrt{3}}{3}\)
- B. \(\frac{1 - \sqrt{3}}{3}\)
- C. \(\frac{1 + \sqrt{3}}{3}\)
- D. \(\frac{2 - \sqrt{3}}{3}\)
If M and N are two fixed points in a plane. Find the locus L = [P : PM = PN]
- A. a line equal to MN
- B. line parallel to MN
- C. Perpendicular bisector of MN
- D. A circle centre P, radius MN
The interior angles of a pentagon are (2x + 5)o, (x + 20)o, xo, (3x – 20)o and (x + 15)o. Find the value of x
- A. 80o
- B. 70o
- C. 65o
- D. 40o
The diameter of a bicycle wheel is 42cm. If the wheel makes 16 complete revolution, what will be the total distance covered by the wheel? [Take \(\pi \frac{22}{7}\)
- A. 672cm
- B. 1056cm
- C. 2112cm
- D. 4224cm
Factorize x2 – 2x – 3xy completely
- A. (x - 2)(3x - y)
- B. (x - 3y)(x - 2)
- C. (x - 3y)(x - 3y)
- D. (3x + y)(x - 2)
If \(\frac{3}{2x} – \frac{2}{3x} = 4\), solve for x
- A. \(\frac{4}{5}\)
- B. \(\frac{4}{13}\)
- C. \(\frac{5}{24}\)
- D. \(\frac{13}{24}\)
Two sets are disjoint if
- A. they are both empty
- B. their union is an empty set
- C. their intersection is an empty set
- D. one of them is a subset of the other
Express the square root of 0.000144 in the standard form
- A. 1.2 x 10-4
- B. 1.2 x 10-3
- C. 1.2 x 10-2
- D. 1.2 x 10-1
Find the value to which N3000.00 will amount in 5 years at 6% per annum simple interest
- A. N3,900.00
- B. N3,750.00
- C. N3,600.00
- D. N3,300
Arrange the following numbers in descending orders of magnitude: 22three, 34five, 21six
- A. 21six, 22three, 34five,
- B. 21six, 34five, 22three
- C. 22three, 34five, 21six
- D. 34five, 21six, 22three
If log 2 = x, log 3 = y and log 7 = z, find, in terms of x, y and z, the value of log (\(\frac{28}{3}\))
- A. 2x + y - z
- B. 2x + z - y
- C. x + y - 2x
- D. x + x - y
In a particular year, the exchange rate of naira (N) varies directly with the Dollars{$}. If N1122 is equivalent to $8, find the Naira equivalent of $36
- A. N8976
- B. N5049
- C. N140.25
- D. N31.17
Simplify: (3\(\frac{1}{2} + 4\frac{1}{3}) \div (\frac{5}{6} – \frac{2}{3}\))
- A. 1\(\frac{1}{4}\)
- B. 8\(\frac{1}{2}\)
- C. 35
- D. 47