WBJEE · Maths · Basic of Mathematics
The value of \(\frac{\log _3 5 \times \log _{25} 27 \times \log _{49} 7}{\log _{81} 3}\) is
- A 1
- B 6
- C \(\frac{2}{3}\)
- D 3
Answer & Solution
Correct Answer
(D) 3
Step-by-step Solution
Detailed explanation
Hints: \(\frac{\left(\frac{\log 5}{\log 3} \times \frac{3 \log 3}{2 \log 5} \times \frac{\log 7}{2 \log 7}\right)}{\left(\frac{\log 3}{4 \log 3}\right)}=3\)
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