Which two signs should be interchanged to make the given equation correct?
28-28÷14+7×2=16

Correct option is D

Given:

28-28÷14+7×2=16

Option (a) Interchange × and -

Modified equation becomes:

28×28÷14+7-2=16

784÷14+5= 16

56+ 5 = 16

61$$\neq$$ 16 (Not follow)

Option (b) Interchange × and ÷​

Modified equation becomes:

​28-28×14+7÷2=16

28-392+7÷2=16

28- 392 +3.5=16

-364+3.5 = 16

-360.5 $$\neq$$ 16 (Not follow)

Option (c) Interchange + and ÷​

Modified equation becomes:

28-28+14÷7×2=16

28-28 + 2 ×2 =16

28-28 +4 = 16

0+4 = 16

4 $$\neq$$ 16 (Not follow)

Option (c) Interchange+ and -​

Modified equation becomes:

28+28÷14-7×2=16

28+2-7×2=16

30-14 =16

16= 16 (Follow)

Thus, correct option is (d)