Correct Answer: – and ×

Solution : Given:
35 + 7 × 12 – 6 ÷ 2 = 6

Let's check the options –
First options: – and ×
35 + 7 – 12 × 6 ÷ 2 = 6
On solving the L.H.S. of the given equation –
= 35 + 7 – 12 × 6 ÷ 2
= 35 + 7 – 12 × 3
= 35 + 7 – 36
= 6
Second option: – and ÷
35 + 7 × 12 ÷ 6 – 2 = 6
On solving the L.H.S. of the given equation –
= 35 + 7 × 12 ÷ 6 – 2
= 35 + 7 × 2 – 2
= 35 + 14 – 2
= 47 ≠ 6
Third option: + and ×
35 × 7 + 12 – 6 ÷ 2 = 6
On solving the L.H.S. of the given equation –
= 35 × 7 + 12 – 6 ÷ 2
= 35 × 7 + 12 – 3
= 245 + 12 – 3
= 254 ≠ 6
Fourth option: × and ÷
35 + 7 ÷ 12 – 6 × 2 = 6
On solving the L.H.S. of the given equation –
= 35 + 7 ÷ 12 – 6 × 2
= 35 + 0.58 – 6 × 2
= 35 + 0.58 – 12
= 23.58 ≠ 6

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