Correct Answer: 25 and 35; × and ÷

Solution : Given:
30 ÷ 6 × 4 + 15 − 35 = 25

Replace the given symbols and numbers in the options one by one with the original symbols and numbers in the given equation.

Let's check each option –
First option: 25 and 30; × and –
= 25 ÷ 6 × 4 + 15 − 35 = 30
= 16.67 + 15 − 35 = 30
= −3.34 ≠ 30
Second option: 4 and 6; + and –
= 30 ÷ 4 × 6 − 15 + 35 = 25
= 45 − 15 + 35
= 65 ≠ 25
Third option: 25 and 35; × and ÷
= 30 × 6 ÷ 4 + 15 − 25 = 35
= 45 + 15 − 25
= 35 (L.H.S. = R.H.S.)
Fourth option: 30 and 35; – and ÷
= 35 ÷ 6 × 4 + 15 − 30 = 25
= 23.34 + 15 − 30
= 8.34 ≠ 25

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