Consider the following statements and choose the correct option.

Correct Answer: Only (i) and (iii) are true.

Subject: 2025

• Only (i) and (ii) are true.
• Only (i) and (iii) are true.
• All (i), (ii) and (iii) are true.
• Only (i) is true.

Explanation: <b>Key Fact</b><br>The marked true statements are (i) and (iii).<br><br><b>Additional Info</b><br>Topic: Average. The correct option is <b>B</b> — Only (i) and (iii) are true..<br><br><b>Why the other options are wrong</b><br><b>Option A</b>: Only (i) and (ii) are true. — not the option marked correct for this question.<br><b>Option C</b>: All (i), (ii) and (iii) are true. — not the option marked correct for this question.<br><b>Option D</b>: Only (i) is true. — not the option marked correct for this question.<br><br><b>Exam Trick</b><br>Identify the exact concept tested, then eliminate options that contradict the definition, formula, chronology or fact in the question.<br><br><b>Final Answer</b><br>Option B — Only (i) and (iii) are true..