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Monday, 15 June 2026
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Mathematics Past Questions and Answers

Topic: Indices, Logarithms and Surds

Jamb Mathematics Questions - Indices, Logarithms and Surds

Question 26:
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\(\sqrt{6}\)
View Answer & Explanation
Question 27:
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
View Answer & Explanation
Question 28:
If (25)x - 1 = 64(\(\frac{5}{2}\))6, then x has the value
  • A 7
  • B 4
  • C 32
  • D 64
  • E 5
View Answer & Explanation
Question 29:
Assuming loge 4.4 = 1.4816 and loge 7.7 = 2.0142, then the value of loge \(\frac{7}{4}\) is
  • A 0.5326
  • B 3.4958
  • C 0.4816
  • D 0.0142
  • E 1.3594
View Answer & Explanation
Question 30:
Find the value of log10\(\frac{1}{40}\), given that log104 = 0.6021
  • A 1.3979
  • B 2.3979
  • C 1.6021
  • D 2.6021
View Answer & Explanation