Four groups of letters are given in jumbled form. In each option, a meaningful word can be made by rearranging the letters. Find the odd one out after rearranging them into meaningful words.

Assuming the given statements to be true, find which of the given conclusions is definitely true. Testbook Statement: C ≥ H F = C

If 'A' denotes 'addition', 'B' denotes 'multiplication', 'C' denotes 'subtraction', and 'D' denotes 'division', then what will be the value of the following expression? 483 D 23 A 93 C 16 B 4 C (15 B 2)