Jamb Mathematics 2015 Past Questions and Answers

Question 21:

• JAMB 2015

Factorize \( x^2 − 2x − 15 \)

A. (x + 3)²
B. (x + 5)(x − 3)
C. (x − 5)²
D. (x − 5)(x + 3)

Question 22:

• JAMB 2015

If A = (−3,5) and B = (4,−1) find the co-ordinate of the mid point

A. 2, ½
B. ½ , 2
C. 1, ½
D. 0, 2

Question 23:

• JAMB 2015

Find the simple interest on N325 in 5years at 3% per annum.

A. N48.75K
B. N50.10K
C. N75.50K
D. N15.75K

Question 24:

• JAMB 2015

Simplify (0.09)² and give your answer correct to 4 significant figures

A. 0.81
B. 0.081
C. 0.0081
D. 8.0001

Question 25:

• JAMB 2015

Simplify \( [1 ÷ (x^2 + 3x + 2)] + [1 ÷ (x^2 + 5x + 6)] \)

A. \( \frac{2}{(x + 1)^2} \)
B. \( \frac{2}{(x + 1)(x + 2} \)
C. \( \frac{2}{(x + 1)(x + 2} \)
D. \( \frac{2}{(x + 1)(x + 3} \)