To solve this sentence error detection problem, let's analyze each part of the sentence one by one to identify any grammatical mistakes. The sentence is divided into four parts:
We need to determine if any of these parts contain an error:
Conclusion: The error is in Part (d), which should be corrected to read "the cheaper to run." The comparative form is used for comparisons between two entities.
If the price of a commodity increases by 25%, by what percentage should the consumption be reduced to keep the expenditure the same?
A shopkeeper marks his goods 40% above cost price and offers a 10% discount. What is his percentage profit?