Correct option is C
Given: 40 D 2 A 3 B 8 C 5 =?
Operation preference wiseBracketsOrders,ofDivisionMultiplicationAdditionSubtractionSymbol[],,()(power),√(root),of÷×+−
If A means ‘addition’, B means ‘multiplication’. C means ‘subtraction’ and D means ‘division’,
Then modified equation will be:
=40 ÷ 2 + 3 × 8 - 5
=20 + 3 × 8 - 5
=20 + 24 - 5
=44 - 5
=39
So, ? is replaced by 39.
Thus, Option C is the correct answer.