Jamb Mathematics 2018 Past Questions and Answers

Question 76:

• JAMB 2018

A room is 12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room.

A. \(\frac{15}{17}\)
B. \(\frac{9}{17}\)
C. \(\frac{8}{15}\)
D. \(\frac{12}{17}\)

Question 77:

• JAMB 2018

Find the equation of the line through (5,7) parallel to the line 7x + 5y = 12

A. 5x + 7y = 20
B. 7x + 5y = 70
C. Xy = 7
D. 15x + 17y = 90

Question 78:

• JAMB 2018

A man stands on a tree 150cm 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. 52cm
B. 43cm
C. 40cm
D. 15cm

Question 79:

• JAMB 2018

In the figure below, /MX/ = 8cm, /XN/ = 12cm, /NZ/ = 4cm and ∠ XMN = ∠ XZY. Calculate /YM/



A. 32cm
B. 24 cm
C. 16 cm
D. 12 cm

Question 80:

• JAMB 2018

Evaluate (2√3 - 4) (2√3 + 4)

A. -4
B. -2
C. 2
D. 4