Correct Answer: ÷ and –

Solution : Given:
4 × 7 + 36 – 12 ÷ 6 = 25

Let's check the options –
First options: + and –
4 × 7 – 36 + 12 ÷ 6 = 25
On solving the L.H.S. of the given equation –
= 4 × 7 – 36 + 12 ÷ 6
= 4 × 7 – 36 + 2
= 28 – 36 + 2
= –6 ≠ 25
Second option: × and –
4 – 7 + 36 × 12 ÷ 6 = 25
On solving the L.H.S. of the given equation –
= 4 – 7 + 36 × 12 ÷ 6
= 4 – 7 + 36 × 2
= 4 – 7 + 72
= 69 ≠ 25
Third option: ÷ and ×
4 ÷ 7 + 36 – 12 × 6 = 25
On solving the L.H.S. of the given equation –
= 4 ÷ 7 + 36 – 12 × 6
= 0.57 + 36 – 12 × 6
= 0.57 + 36 – 72
= –35.43 ≠ 25
Fourth option: ÷ and –
4 × 7 + 36 ÷ 12 – 6 = 25
On solving the L.H.S. of the given equation –
= 4 × 7 + 36 ÷ 12 – 6
= 4 × 7 + 3 – 6
= 28 + 3 – 6
= 25

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