CTET Paper II (Mathematics and Science) 31 Dec 2021 Solved Paper

Concept:To find the decimal closest to a given number, compare the difference of all possible arrangements. This tests understanding of decimal place values and comparison.Explanation:Possible decimals using $2,3,6,9$ once: $62.39$, $62.93$, $63.29$, $63.92$, $69.23$, $69.32$, etc.Calculate distance from $64$: $|62.39 - 64| = 1.61$, $|63.92 - 64| = 0.08$, others are farther.So $63.92$ is the only closest number, not $62.39$. Student B is correct; there is exactly one closest answer.Thus statement (a) is correct (assesses comparing decimals), (b) is wrong, (c) is wrong, (d) is correct (teacher can foster critical analysis).Answer:Option D. (a) and (d) are correct.