Correct Answer: ×, ÷, −, +

Solution : Given:
11 * 3 * 11 * 2 * 9 = 10

Replace * with the mathematical signs and solve the equation one by one using the BODMAS rule.

Let's check the given options –
First option: ×, ÷, −, +
⇒ 11 × 3 ÷ 11 − 2 + 9 = 10
Solving the L.H.S of the equation –
= 3 − 2 + 9
= 10
L.H.S. = R.H.S.
Second option: ÷, ×, −, +
⇒ 11 ÷ 3 × 11 − 2 + 9 = 10
Solving the L.H.S of the equation –
= 40.34 − 2 + 9
= 47.34 ≠ 10
Third option: ÷, +, −, ×
⇒ 11 ÷ 3 + 11 − 2 × 9 = 10
Solving the L.H.S of the equation –
= 3.67 + 11 − 18
= −3.33 ≠ 10
Fourth option: ×, ÷, +, −
⇒ 11 × 3 ÷ 11 + 2 − 9 = 10
Solving the L.H.S of the equation –
= 11 + 2 − 9
= 4 ≠ 10

So, only the first option satisfies the given equation. Hence, the first option is correct.