Mathematics Past Questions And Answers
If 6 men can dig a well in 3 days, how many men will dig it in 2 days at the same rate?
- (a)9men
- (b) 12men
- (c) 16men
- (d) 15men
A string is 4.8m. A boy measured it to be 4.95m. Find the percentage error.
- A. \( \frac{5}{16} \)%
- B. \(1\frac{5}{16} \)%
- C. \( 3\frac{1}{33} \)%
- D. \( 3\frac{1}{8} \)%
X% of 23 =9.2
- A. X=50
- B. X=30
- C. X=40
- D. X=20
If x - 3 is directly proportional to the square of y and x = 5 when y =2, find x when y = 6.
- A. 30
- B. 21
- C. 16
- D. 12
In the diagram, \(\overline{MP}\) is a tangent to the circle NQR, ∠NQR, ∠PNQ = 64 and | \(\overline{RQ}\) | = | \(\overline{RN}\) |. Find the angle market t.

- A. 130°
- B. 115°
- C. 58°
- D. 68°
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
Four oranges sell for Nx and three mangoes sell for Ny. Olu bought 24 oranges and 12 mangoes. How much did he pay in terms of x and y?
- A. N94x + 6y)
- B. N(6x + 4y)
- C. N(24x + 12y)
- D. N(12x + 24y)
Find the solution of the equation x - 8\(\sqrt{x}\) + 15 = 0
- A. 3, 5
- B. -3, -5
- C. 9, 25
- D. -9, 25
Differentiate \(\frac{6x^3 - 5x^2 + 1}{3x^2}\) with respect to x
- A. \(\frac{2 + 2}{3x^3}\)
- B. 2 + \(\frac{1}{6x}\)
- C. 2 - \(\frac{2}{3x^3}\)
- D. \(\frac{1}{5}\)
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. \(\frac{x - 6}{24}\)

