Jamb Mathematics 2005 Past Questions and Answers

Question 36:

• JAMB 2005

The histogram above shows the distribution of monthly incomes of the workers in a company. How many workers earn more than N700.00?

A. 16
B. 12
C. 8
D. 6

Question 37:

• JAMB 2005

The grades of 36 students in a test are shown in the pie chart above. How many students had excellent?

A. 7
B. 8
C. 9
D. 12

Question 38:

• JAMB 2005

The table above shows that the scores of a group of students in a test. If the average score is 3.5, find the value of x

A. 1
B. 2
C. 3
D. 4

Question 39:

• JAMB 2005

The model height and range of heights 1.35, 1.25, 1.35, 1.40, 1.35, 1.50, 1.35, 1.50, and 1.20 are m and r respectively. Find m+2r.

A. 1.35
B. 1.65
C. 1.95
D. 3.00

Question 40:

• JAMB 2005

Find the value of t if the standard deviation of 2t, 3t, 4t, 5t, and 6t is √2

A. 1
B. 2
C. 3
D. 4