Jamb Mathematics 2013 Past Questions and Answers

Question 86:

• JAMB 2013

The pie chart above shows the statistical distribution of 80 students in five subjects in an examination. Calculate how many student offer Mathematics.

A. 30
B. 11
C. 50
D. 20

Question 87:

• JAMB 2013

If the angles of a quadrilateral are (3y + 10)°, (2y + 30)°, (y + 20)° and 4y°. Find the value of y.

A. 66°
B. 12°
C. 30°
D. 42°

Question 88:

• JAMB 2013

A square tile has side 30 cm. How many of these tiles will cover a rectangular floor of length 7.2m and width 4.2m?

A. 720
B. 336
C. 420
D. 576

Question 89:

• JAMB 2013

Find the length of a chord which subtends an angle of 90° at the centre of a circle whose radius is 8 cm.

A. \(8\sqrt{3}\) cm
B. 4 cm
C. 8 cm
D. \(8\sqrt{2}\) cm

Question 90:

• JAMB 2013

A chord of a circle subtends an angle of 120° at the centre of a circle of diameter \(4\sqrt{3} cm\). Calculate the area of the major sector.

A. 32\(\pi\) cm\(^2\)
B. 4\(\pi\) cm\(^2\)
C. 8\(\pi\) cm\(^2\)
D. 16\(\pi\) cm\(^2\)