Sections
LOGARITHM(LEVEL - 2)
Q1–10 of 50
1
(log₅ 3) × (log₃ 625) equals
Correct Answer:
D. 4
Explanation:
No explanation available.
2
(log₅ 5)(log₄ 9)(log₃ 2) is equal to
Correct Answer:
A. 1
Explanation:
No explanation available.
3
If log₁₂ 27 = a, then log₆ 16 is
Correct Answer:
D. 4(3 – a)/(3 + a)
Explanation:
No explanation available.
4
If log₁₀ 5 + log₁₀ (5x + 1) = log₁₀ (x + 5) + 1, then x is equal to
Correct Answer:
B. 3
Explanation:
No explanation available.
5
If log₅ (x² + x) – log₅ (x + 1) = 2, then the value of x is
Correct Answer:
C. 25
Explanation:
No explanation available.
6
\( \dfrac{1}{2}(\log x+\log y)=\log\left(\dfrac{x+y}{2}\right) \)
if
Correct Answer:
C. x = y
Explanation:
No explanation available.
7
The value of
\( \dfrac{1}{\log_{3}60}+\dfrac{1}{\log_{4}60}+\dfrac{1}{\log_{5}60} \) is
Correct Answer:
B. 1
Explanation:
No explanation available.
8
The value of (log₃ 4)(log₄ 5)(log₅ 6)(log₆ 7)(log₇ 8)(log₈ 9) is
Correct Answer:
A. 2
Explanation:
No explanation available.
9
The value of 16(log₄ 5) is.
Correct Answer:
D. 25
Explanation:
No explanation available.
10
If log x + log y = log (x + y), then
Correct Answer:
D. y = x/(x – 1)
Explanation:
No explanation available.