Jamb Mathematics 2015 Past Questions and Answers

Question 91:

• 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. \( \frac{2}{(x + 1)(x + 3} \)

Question 92:

• JAMB 2015

One bag contain 3 blue and 5 red balls, another bag contain 2 blue and 4 red balls respectively. One ball is drawn for each bag. What is the probability both balls are blue

A. \( \frac{2}{15} \)
B. \( \frac{3}{24} \)
C. \( \frac{3}{21} \)
D. \( \frac{3}{28} \)

Question 93:

• JAMB 2015

Given that A = {3, 4, 1, 10, 1/3 }
B = {4, 3 1/3, 1/3, 7}.
Find A∩B

A. {}
B. {1/3, 1, 2}
C. {3, 4, 1/3}
D. {1, 3, 1/3}

Question 94:

• JAMB 2015

Find x if 132_x = 70 _eight.

A. 5
B. 3
C. 6
D. 1

Question 95:

• JAMB 2015

A man sells his new brand car for N420,000 at a gain of 15%. What did it cost him?

A. N410,000
B. N365, 217
C. N157, 250
D. N257,000