Jamb Mathematics Past Questions
Question 1
The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is
- A. 1.5
- B. 0.8
- C. 1.0
- D. 1.02
- E. 1.05
Question 2
\((1.28 \times 10^{4}) \div (6.4 \times 10^{2})\) equals
- A. \(2 \times 10^{-5}\)
- B. \(2 \times 10^{-1}\)
- C. \(2 \times 10^{1}\)
- D. \(2 \times 10^{-4}\)
Question 3
If the value of \(\pi\) is taken to be \(\frac{22}{7}\), the area of a semi-circle of diameter 42m is
- A. \(5544m^2\)
- B. \(1386m^2\)
- C. \(132m^2\)
- D. \(264m^2\)
- E. \(693m^2\)
Question 4
\((3.2)^2 -(1.8)^2\) equals
- A. 7.0
- B. 2.56
- C. 13.48
- D. 2.0
- E. 0.07
Question 5
In \(\bigtriangleup\)PQR, \(PQ = 10\) cm, \(QR = 8\) cm, and \(RP = 6\) cm, the perpendicular RS is drawn from R to PQ. Find the length of RS.
- A. \(4 \text{ cm}\)
- B. \(32 \text{ cm}\)
- C. \(\frac{30}{7} \text{ cm}\)
- D. \(\frac{40}{7} \text{ cm}\)
- E. \(4.8 \text{ cm}\)
