Jamb Mathematics Past Questions and Answers

Question 2261:

• JAMB 2015

Find the range of values of t which satisfies the inequality.
2t − 1 \(\leq\) 3 and 2− t \(\geq\) 5

A. -3 \(\leq\) t \(\leq\) 1
B. -2 \(\leq\) t \(\leq\) 3
C. -3 \(\leq\) t \(\leq\) 4
D. -3 \(\leq\) t \(\leq\) 2

Question 2262:

• JAMB 2015

Given that A = {1, 5, 7}
B = {3, 9, 12, 15}
C = {2, 4, 6, 8}
Find (A ∪ B) ∪ C

A. {1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 15}
B. {1, 2, 3, 5, 6, 8, 12, 15}
C. {2, 4, 5, 9, 12, 15}
D. {1, 5, 6, 7, 8, 9, 12, 15}

Question 2263:

• 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 2264:

• 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 2265:

• 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