To solve this sentence completion problem, we want to find the pair of words that best fit the meaning of the sentence as a whole. The sentence is: "Science is the knowledge by which we can _______ nature and use it for our ________."
Let's evaluate each of the given options:
Given this analysis, the pair "understand … benefit" is the most appropriate choice, as it reflects how science helps us comprehend and utilize nature effectively for advantageous purposes.
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?