Correct Answer: × and +, 3 and 2

Solution : Given:
6 + 2 – 3 = 16

Replace the given symbols and numbers in the options one by one with the original symbols and numbers in the given equation.
First option: + and –, 2 and 3
⇒ 6 – 3 + 2 = 16
Solving the L.H.S. of the equation –
= 8 – 3
= 5 ≠ 16
Second option: × and +, 3 and 2
⇒ 6 × 3 – 2 = 16
Solving the L.H.S. of the equation –
= 18 – 2
= 16
Third option: ÷ and –, 3 and 2
⇒ 6 + 3 ÷ 2 = 16
Solving the L.H.S. of the equation –
= 6 + 1.5
= 7.5 ≠ 16
Fourth option: × and –, 2 and 3
⇒ 6 + 3 × 2 = 16
Solving the L.H.S. of the equation –
= 6 + 6
= 12 ≠ 16

Here, only the second option satisfies the R.H.S. of the given equation. Hence, the second option is correct.