Correct Answer: ×, ÷, –

Solution : Given:

33 ? 11 ? 3 ? 6 = 115

Let's check the options —

First option: –, ×, +;

After replacing the symbols, the equation becomes 33 – 11 × 3 + 6 = 6 . So, the relation does not hold true.

Second option: +, –, ×;

After replacing the symbols, the equation becomes 33 + 11 – 3 × 6 = 26 . So, the relation does not hold true.

Third option: ×, ÷, –;

After replacing the symbols, the equation becomes 33 × 11 ÷ 3 – 6 = 115 . So, this relation holds true.

Fourth option: ÷, ×, ×;

After replacing the symbols, the equation becomes 33 ÷ 11 × 3 × 6 = 54 . So, the relation does not hold true.

Hence, the third option is correct.