Jamb Mathematics Past Questions and Answers

Question 2286:

• 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 2287:

• JAMB 2015

Evaluate log₇17

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

Question 2288:

• JAMB 2015

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

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

Question 2289:

• JAMB 2015

Evaluate log5(\( y^2x^5 ÷ 125b½) \)

A. 2 log₅y + 5log₅ y² − 3
B. Log₅ y² + 5log₅ x + 3
C. 25log_y 5 + 3
D. 2log₅y + 5log₅x − ½ log₅b −3

Question 2290:

• JAMB 2015

Integral ∫\( (5x^3 + 7x^2 − 2x + 5)\)dx

A. \( \frac{5x^4}{4} + \frac{7x^3}{3} + 2x + C \)
B. \( \frac{5x}{4} + \frac{7x^3}{3} - x^2 + 5x + C \)
C. \( \frac{5x^3}{3} + \frac{7x^2}{x} - x + C \)
D. \( \frac{2x^2}{3} + \frac{x}{5} - C \)