Jamb Mathematics 2001 Past Questions and Answers

Question 31:

• JAMB 2001

Find the rate of change of the volume, V of a sphere with respect to its radius, r when r = 1.

A. 12π
B. 4π
C. 24π
D. 8π

Question 32:

• JAMB 2001

If y = x sinx, find dy/dx when x = π/2.

A. -π/2
B. -1
C. 1
D. π/2

Question 33:

• JAMB 2001

Find the dimensions of a rectangle of greatest area which has a fixed perimeter p.

A. Square of sides p
B. Square of sides 2p
C. Square of sides (p/2)
D. Square of sides (p/4)

Question 34:

• JAMB 2001

Given the scores: 4, 7, 8, 11, 13, 8 with corresponding frequencies: 3, 5, 2, 7, 2, 1 respectively. Find the square of the mode.

A. 49
B. 121
C. 25
D. 64

Question 35:

• JAMB 2001

Given the scores: 4, 7, 8, 11, 13, 8 with corresponding frequencies: 3, 5, 2, 7, 2, 1 respectively. The mean score is

A. 7.0
B. 8.7
C. 9.5
D. 11.0