Correct Answer: ÷, +, ÷, +, =

Solution : Given:
12 * 4 * 15 * 3 * 16 * 24

Replace * with the mathematical signs and solve the equations one by one using BODMAS.
Let's check the given options –
First option: +, –, ÷, ×, =
⇒ 12 + 4 – 15 ÷ 3 × 16 = 24
On solving the LHS of the equation –
= 12 + 4 – 5 × 16
= 12 + 4 – 80
= 16 – 80
= –64 ≠ 24
Second option: –, +, ÷, ×, =
⇒ 12 – 4 + 15 ÷ 3 × 16 = 24
On solving the LHS of the equation –
= 12 – 4 + 5 × 16
= 12 – 4 + 80
= 92 – 4
= 88 ≠ 24
Third option: ÷, –, +, ×, =
⇒ 12 ÷ 4 – 15 + 3 × 16 = 24
On solving the LHS of the equation –
= 3 – 15 + 3 × 16
= 3 – 15 + 48
= 51 – 15
= 36 ≠ 24
Fourth option: ÷, +, ÷, +, =
⇒ 12 ÷ 4 + 15 ÷ 3 + 16 = 24
On solving the LHS of the equation –
= 3 + 5 + 16
= 24

Therefore, only the fourth option satisfies the equation. Hence, the fourth option is correct.