Jamb 2012 Mathematics Past Questions And Answers
1
If y = x2 - \(\frac{1}{x}\), find \(\frac{\delta y}{\delta x}\)
- A. 2x - \(\frac{1}{x^2}\)
- B. 2x + x2
- C. 2x - x2
- D. 2x + \(\frac{1}{x^2}\)
2
The probability that a student passes a physics test is 2/3. If he takes three physics tests, what is the probability that he passes two of the tests?
- A. 2/27
- B. 3/27
- C. 4/27
- D. 5/3
3
Evaluate \(\int^2_1(x^2 - 4x)dx\)
- A. \(\frac{11}{3}\)
- B. \(\frac{3}{11}\)
- C. \(-\frac{3}{11}\)
- D. \(-\frac{11}{3}\)
4
Find the standard deviation of 2,3,8,10 and 12
- A. 3.9
- B. 4.9
- C. 5.9
- D. 6.9
5
If log3x2 = -8, what is x?
- A. \(\frac{1}{3}\)
- B. \(\frac{1}{9}\)
- C. \(\frac{1}{27}\)
- D. \(\frac{1}{81}\)
6
Evaluate \(\int^{\frac{\pi}{4}}_0sec^2 \theta d \theta\)
- A. 1
- B. 2
- C. 3
- D. 4
7
Simply \(\frac{2\frac{2}{3} \times 1\frac{1}{2}}{4\frac{4}{5}}\)
- A. \(1\frac{1}{4}\)
- B. \(1\frac{1}{6}\)
- C. \(\frac{5}{6}\)
- D. \(\frac{4}{5}\)
8
Find the median of 2,3,7,3,4,5,8,9,9,4,5,3,4,2,4 and 5
- A. 9
- B. 8
- C. 7
- D. 4
9
Calculate the volume of a cuboid of length 0.76cm, breadth 2.6cm and height 0.82cm.
- A. 3.92cm3
- B. 2.13cm3
- C. 1.97cm3
- D. 1.62cm3
10
The grades of 36 students in a class test are as shown in the pie chart below. How many students have excellent?
- A. 12
- B. 9
- C. 8
- D. 7