Jamb Mathematics 2012 Past Questions and Answers

Question 46:

• JAMB 2012

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

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

Question 47:

• JAMB 2012

The bar chart above shows the distribution of marks in a class test. If the pass mark is 5, what percentage of students failed the test?

A. 10%
B. 20%
C. 50%
D. 60%

Question 48:

• JAMB 2012

A circular arc subtends angle 150° at the centre of a circle of radius 12cm. Calculate the area of the sector of the arc.

A. 30\(\pi\) cm\(^2\)
B. 60\(\pi\) cm\(^2\)
C. 120\(\pi\) cm\(^2\)
D. 150\(\pi\) cm\(^2\)

Question 49:

• JAMB 2012

A man stands on a tree 150 cm high and sees a boat at an angle of depression of 74°. Find the distance of the boat from the base of the tree.

A. 52 cm
B. 43 cm
C. 40 cm
D. 15 cm