Correct Answer - Option 4 : 21
The logic is:
I. \(4 \ \bigstar \ 3 = 15\)
4 × 3 + 3 = 12 + 3 = 15
II. \(7 \ \bigstar \ 3 = 24\)
7 × 3 + 3 = 21 + 3 = 24
III. \(6 \ \bigstar \ 5 = 33\)
6 × 5 + 3 = 30 + 3 = 33
Similarly,
IV. \(9 \ \bigstar \ 2 = ?\)
9 × 2 + 3 = 18 + 3 = 21
Hence, ‘21’ is the correct answer.