Jamb Mathematics Past Questions and Answers

Question 1916:

• JAMB 2008

A binary operation on the real set of numbers excluding -1 is such that for all m, n ∈ R, mΔn = m+n+mn. Find the identity element of the operation.

A. 1
B. Zero
C. -¹/₂
D. -1

Question 1917:

• JAMB 2008

In the diagram above, PQ//RS. The size of the angle marked x is

A. 100^o
B. 80^o
C. 50^o
D. 30^o

Question 1918:

• JAMB 2008

Find the exterior angle of a 12 sided regular polygon

A. 12^o
B. 24^o
C. 25^o
D. 30^o

Question 1919:

• JAMB 2008

In the diagram above ∠ OPQ is

A. 90^o
B. 53^o
C. 36^o
D. 26^o

Question 1920:

• JAMB 2008

Find the area of the figure above
[π = ²²/₇]

A. 12.5 cm²
B. 75.0 cm²
C. 78.5 cm²
D. 84.8 cm²