Apply all option one by one.

Correct Option: C

Apply all option one by one.
∵ 6 x 4 + 2 = 16 ⇒ 4 + 6 x 2 = 16 ⇒ 4 + 12 = 16

Given equation → 15 * 24 * 3 * 6 * 17
Substitute the signs from given options

Correct Option: A

Given equation → 15 * 24 * 3 * 6 * 17
From option (a), substitute the signs
15 + 24 ÷ 3 - 6 = 17
⇒ 15 + 24/3 - 6 = 17
⇒ 15 + 8 - 6 = 17
⇒ 23 - 6 = 17
∴ 17 = 17

(2)³ ÷ 4 = 2, (4)⁴ ÷ 8 = 32
Therefore, (6)² ÷ 4 = 9

Correct Option: A

(2)³ ÷ 4 = 2, (4)⁴ ÷ 8 = 32
Therefore, (6)² ÷ 4 = 9

Here sign '&' does not convey any meaning and sign '%' signifies '+'
26 + 7 = 33, 46 + 8 = 54
Therefore, 6 + 89 = 95

Correct Option: A

Here sign '&' does not convey any meaning and sign '%' signifies '+'
26 + 7 = 33, 46 + 8 = 54
Therefore, 6 + 89 = 95

879 ⇒ (7 + 9) - 8 = 8
625 ⇒ (2 + 5) - 6 = 1
and 586 ⇒ (8 + 6) - 5 = 9
Similarly, 785 ⇒ (8 + 5) - 7 = 6

Correct Option: A

879 ⇒ (7 + 9) - 8 = 8
625 ⇒ (2 + 5) - 6 = 1
and 586 ⇒ (8 + 6) - 5 = 9
Similarly, 785 ⇒ (8 + 5) - 7 = 6