CA Foundation · Quantitative Aptitude · Ratio and Proportion, Indices and Logarithms
The value of ln e⁵ − ln e² is:
The value is 3. The natural logarithm of e raised to a power equals that power, so ln e⁵ is 5 and ln e² is 2, and their difference is 3.
- A3Correct
- B7
- C10
- De³
Explanation
ln e⁵ = 5 and ln e² = 2, so the difference is 3. Option 7 adds instead of subtracting. Option 10 multiplies the two values.
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