Question
Three statements are given, followed by two conclusions
numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements: Statements: 1. Some avalanches are precipitations. 2. Some cataclysms are avalanches. 3. All avalanches are storms. Conclusions: I. Some storms are cataclysms. II. No precipitation is a storm.Solution
A certain value is initially increased by 40% and then reduced by 25%. Determine the overall percentage change in the initial value.
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The difference between 7/10 of a number and 38% of the number is 112. What is 20% of the number?
...X and Y are two numbers. Their average is 280, and the sum of X and Y is 160% of X. What percentage of X is the difference between X and Y?
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