Correct Answer: ÷ and –

Solution : Given:
912 – 456 × 28 + 390 ÷ 2 = 444

Replace the given symbols in the options one by one with the original symbols in the given equation and apply the BODMAS rule.
First option: ÷ and –
= 912 ÷ 456 × 28 + 390 – 2
= 2 × 28 + 390 – 2
= 56 + 390 – 2
= 446 – 2
= 444
Second option: ÷ and +
= 912 – 456 × 28 ÷ 390 + 2
= 912 – 456 × 0.07 + 2
= 912 – 31.92 + 2
= 914 – 31.92
= 882.08 ≠ 444
Third option: – and +
= 912 + 456 × 28 – 390 ÷ 2
= 912 + 456 × 28 – 195
= 912 + 12768 – 195
= 13680 – 195
= 13485 ≠ 444
Fourth option: + and ×
= 912 – 456 + 28 × 390 ÷ 2
= 912 – 456 + 28 × 195
= 912 – 456 + 5460
= 6372 – 456
= 5916 ≠ 444

So, only the first option satisfies the R.H.S. of the given equation. Hence, the first option is correct.