Correct Answer: 6 and 9, ÷ and +

Solution : Given:
24 × 9 + 6 ÷ 24 – 18 = 22

Let's check the given options –
First option: 18 and 22, + and –
⇒ 24 × 9 – 6 ÷ 24 + 22 = 18
Solving the L.H.S. of the equation –
= 24 × 9 – 0.25 + 22
= 216 – 0.25 + 22
= 238 – 0.25
= 237.75 ≠ 18
Second option: 24 and 6, × and +
Since there are two 24s in the equation, it is unclear which 24 should be replaced by 6. So, this option is incorrect.
Third option: 6 and 9, ÷ and +
⇒ 24 × 6 ÷ 9 + 24 – 18 = 22
Solving the L.H.S. of the equation –
= 24 × 6 ÷ 9 + 24 – 18
= 16 + 24 – 18
= 40 – 18
= 22 = R.H.S.
Fourth option: 6 and 18, ÷ and ×
⇒ 24 ÷ 9 + 18 × 24 – 6 = 22
Solving the L.H.S. of the equation –
= 24 ÷ 9 + 18 × 24 – 6
= 2.67 + 18 × 24 – 6
= 2.67 + 432 – 6
= 434.67 – 6
= 428.67 ≠ 22

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