Jamb Mathematics Past Questions For Year 1992
Question 2
The radius of a circle is given as 5cm subject to an error of 0.1cm. What is the percentage error in the area of the circle?
- A. \(\frac{1}{25}\)
- B. \(\frac{1}{4}\)
- C. 4
- D. 25
Question 3
Evaluate \(\log_{b} a^{n}\) if \(b = a^{\frac{1}{n}}\).
- A. \(n^2\)
- B. n
- C. \(\frac{1}{n}\)
- D. \(\frac{1}{n^2}\)
Question 4
What is the value of x satisfying the equation \(\frac{4^{2x}}{4^{3x}}\) = 2?
- A. -2
- B. -\(\frac{1}{2}\)
- C. \(\frac{1}{2}\)
- D. 2
Question 5
Simplify \(\frac{(1.25 \times 10^{-4}) \times (2.0 \times 10^{-1})}{(6.25 \times 10^5)}\)
- A. 4.0 x 10\(^{-3}\)
- B. 5.0 x 10\(^{-2}\)
- C. 2.0 x 10\(^{-1}\)
- D. 5.0 x 10\(^{-3}\)
