Jamb Mathematics 2015 Past Questions and Answers

Question 41:

• JAMB 2015

Determine the third term of a geometrical progression whose first and second term are 2 and 54 respectively

A. 1458
B. 1485
C. 1345
D. 1258

Question 42:

• JAMB 2015

Given that S and T are sets of real numbers such that S = {x : 0 \(\leq\) x \(\leq\) 5} and T = {x : − 2 < x < 3} Find S \(\cup\) T

A. −3 < x < \(\leq\)3
B. −2 < x < \(\leq\)5
C. 2 < x < \(\geq\) −5
D. −1 < x \(\geq\) \(\leq\)2

Question 43:

• JAMB 2015

If an investor invest N450,000 in a certain organization in order to yield X as a return of N25,000. Find the return on an investment of N700,000 by Y in the same organization.

A. N14,950.50K
B. N25,150.30K
C. N15,000.00K
D. N38,888.90K

Question 44:

• JAMB 2015

Evaluate log₇17

A. 1.35
B. 1.353
C. 1.455
D. 0.455

Question 45:

• JAMB 2015

10011₂ + *****₂ + 11100₂ + 101₂ = 1001111₂

A. 1111₂
B. 11011₂
C. 10111₂
D. 11001₂