Q
Consider the following statements: I. A 10% increase in a number followed by a 10% decrease in the result returns the original number. II. 50% of 200 is 100. III. If a number is increased by 20%, then decreased by 20%, the final result is less than the original number. IV. 200% increase means tripling the number.
A. Only I and II
B. Only II and III
C. Only III and IV
D. Only II, III, and IV
Correct Answer:D
Explanation:
I is false, II is correct, III is correct (multiplicative effect), IV is correct (200% increase = original + 2?original).