NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 386:

• JAMB 1997

Given that log_a2 = 0.693 and log_a3 = 1.097, find log_a 13.5

A. 1.404
B. 1.790
C. 2.598
D. 2.790

Question 387:

• JAMB 1997

Simplify \(\frac{2\sqrt{3} + 3\sqrt{5}}{3\sqrt{5} - 2\sqrt{3}}\)

A. \(\frac{19 + 4\sqrt{25}}{11}\)
B. \(\frac{19 + 4\sqrt{15}}{11}\)
C. \(\frac{19 + 2\sqrt{15}}{11}\)
D. \(\frac{19 + 2\sqrt{15}}{19}\)

Question 388:

• JAMB 1997

Find the simple interest rate percent per annum at which N1,000 accumulates to N1,240 in 3 years

A. 6%
B. 8%
C. 10%
D. 12%

Question 389:

• JAMB 1997

If U = (s, p, i, e, n, d, o, u, r), X = (s, p, e, n, d) Y = (s, e, n, o, u), Z = (p, n, o, u, r) find X ∩( Y ∪ Z)

A. (p, o, u, r)
B. (s, p, d, r)
C. (p, n, e)
D. (n, d, u)

Question 390:

• JAMB 1997

A survey of 100 students in an institution shows that 80 students speak Hausa and 20 students speak Igbo, while only 9 students speak both language. How many students speak neither Hausa nor Igbo?

A. O
B. 9
C. 11
D. 20