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

Question 41:

• JAMB 2013

Simplify \(\frac{3^{-5n}}{9^{1-n}} \times 27^{n + 1}\)

A. 3²
B. 3³
C. 3⁵
D. 3

Question 42:

• JAMB 2013

If log₁₀4 = 0.6021, evaluate log₁₀4^1/3

A. 0.3011
B. 0.9021
C. 1.8063
D. 0.2007

Question 43:

• JAMB 2013

Simplify \(\frac{\sqrt{5}(\sqrt{147} - \sqrt{12}}{\sqrt{15}}\)

A. 5
B. \(\frac{1}{5}\)
C. \(\frac{1}{9}\)
D. 9

Question 44:

• JAMB 1978

Find the square root of 170 - 20\(\sqrt{30}\)

A. 2 \(\sqrt{10}\) - 5\(\sqrt{3}\)
B. 2 \(\sqrt{5}\) - 5\(\sqrt{6}\)
C. 5 \(\sqrt{10}\) - 2\(\sqrt{3}\)
D. 3 \(\sqrt{5}\) - 8\(\sqrt{6}\)

Question 45:

• JAMB 1978

What is the number whose logarithm to base 10 is 2.3482?

A. 223
B. 2228
C. 2.235
D. 22.37
E. 0.2229