By interchanging the given two signs which of the following equation will be correct?
÷ and ×

Correct option is C

(a) 9 × 3 + 8 ÷ 4 – 7
After changing the sign
9 ÷ 3 + 8 × 4 – 7
3 + 8 × 4 – 7
3 + 32 –7
28 ≠30
(b) 11 ÷ 12 × 6 + 8 - 10
After changing the sign
11 × 12÷ 6 + 8 - 10
=11 × 2 + 8 - 10
=22-2
=20
20 ≠25
(c) 23 – 20 + 35 ÷ 2 × 10
After changing the sign
(c) 23 – 20 + 35×2 ÷ 10
= 23-20+7
= 10
It is correct
(d) 32 + 3 – 12 ÷ 18 × 9
After changing the sign
32 + 3 – 12 ×18 ÷ 9
= 32-12×2
=11≠10