Logarithms - Jamb Mathematics Past Questions and Answers

Question 36:

• JAMB 1999

If log 10 to base 8 = X, evaluate log 5 to base 8 in terms of X.

A. \(\frac{1}{2}\)X
B. X-\(\frac{1}{4}\)
C. X-\(\frac{1}{3}\)
D. X-\(\frac{1}{2}\)

Question 37:

• JAMB 2000

Evaluate 5^-3log₅2 x 2^2log₂3

A. 8
B. 1¹/₈
C. ²/₅
D. ¹/₈

Question 38:

• JAMB 2003

Evaluate \(log_{\sqrt{2}}4+log_{\frac{1}{2}}16-log_{4}32\)

A. -5.5
B. -2.5
C. 2.5
D. 5.5

Question 39:

• JAMB 2003

Evaluate \(log_{\sqrt{2}}4+log_{\frac{1}{2}}16-log_{4}32\)

A. -5.5
B. -2.5
C. 2.5
D. 5.5

Question 40:

• JAMB 2004

If 6log_x2 - 3log_x3 = 3log₅0.2, find x.

A. 8/3
B. 4/3
C. 3/4
D. 3/8