Jamb Mathematics 2015 Past Questions and Answers

Question 86:

• JAMB 2015

The extension of a stretched string is directly proportional to its tension. If the extension produced by a tension of 8 Newton’s is 2cm, find the extension produced by a tension of 12 newton’s.

A. 2
B. 1
D. 3

Question 87:

• 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 88:

• 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 89:

• 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 90:

• 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