Indices, Logarithms and Surds - Jamb Mathematics Past Questions and Answers

Question 191:

• JAMB 2020

If log\(_{10}\)2 = 0.3010 and log\(_{10}\)3 = 0.4771, eventually without using the logarithm tables, log\(_{10}\)4.5

A. 0.3010
B. 0.4771
C. 0.6532
D. 0.9542

Question 192:

• JAMB 2020

Express the product of 0.0014 and 0.011 in standard form

A. 1.54 x 10\(^{-2}\)
B. 1.54 x 10\(^{-3}\)
C. 1.54 x 10\(^{-2}\)
D. 1.54 x 10\(^{-5}\)

Question 193:

• JAMB 2020

Find the value of x if \(\frac{\sqrt{2}}{x + \sqrt{2}}\) = \(\frac{1}{x - \sqrt{2}}\)

A. 3\(\sqrt{2}\) + 4
B. 3\(\sqrt{2}\) - 4
C. 3 - 2\(\sqrt{2}\)
D. 4 + 2\(\sqrt{2}\)

Question 194:

• JAMB 2021

Find x if log\(_9\)x = 1.5

A. 27
B. 15
C. 3.5
D. 32

Question 195:

• JAMB 2021

Simplify 2log \(\frac{2}{5}\) - log\(\frac{72}{125}\) + log 9

A. 1 - 4 log3
B. -1 + 2 log 3
C. -1 + 5 log2
D. 1 - 2log 2