Jamb Mathematics Past Questions and Answers

Question 1856:

• JAMB 2007

Marks	3	4	5	6	7	8
Frequency	5	y - 1	y	9	4	1

The table above gives the frequency distribution of marks obtained by a group of students in a test. If the total mark scored is 200, calculate the value of y

A. 15
B. 13
C. 11
D. 8

Question 1857:

• JAMB 2007

In how many ways can 6 subjects be selected from 10 subjects for an examination

A. 218
B. 216
C. 215
D. 210

Question 1858:

• JAMB 2007

Integrate \(\frac{x^2 -\sqrt{x}}{x}\) with respect to x

A. \(\frac{x^2}{2}-2\sqrt{x}+K\)
B. \(\frac{2(x^2 - x)}{3x}+K\)
C. \(\frac{x^2}{2}-\sqrt{x}+K\)
D. \(\frac{(x^2 - x)}{3x}+K\)

Question 1859:

• JAMB 2007

If y = x cos x, find dy/dx

A. Sin x - x cos x
B. Sin x + x cos x
C. Cos x + x sin x
D. Cos x - x sin x

Question 1860:

• JAMB 2007

Find the value of x for which the function f(x) = 2x³ - x² - 4x + 4 has a maximum value

A. ²/₃
B. 1
C. - ²/₃
D. - 1