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If '+' means '-', '- means ' ×', ' × ' means ' ÷ ' and ' ÷ ' means '+', what will come in place of the question mark (?) in the following equation?
Question

If '+' means '-', '- means ' ×', ' × ' means ' ÷ ' and ' ÷ ' means '+', what will come in place of the question mark (?) in the following equation?
15+12×4÷5-2=?

A.

18

B.

20

C.

28

D.

22

Correct option is D

Given:
15+12×4÷5-2=?​
Concept Used:
Operation preference wiseSymbolBrackets[],,()Orders,of(power),(root),ofDivision÷Multiplication×Addition+Subtraction\begin{array}{|c|c|} \hline \textbf{Operation preference wise} & \textbf{Symbol} \\\hline Brackets &[],{}, () \\ \hline Orders, of & (power), √ (root) , of \\ \hline Division& ÷ \\ \hline Multiplication & × \\ \hline Addition & + \\ \hline Subtraction & - \\\hline \end{array}​​
Symbol
+
-
×
÷
Meaning
-
×
÷
+
The modified equation becomes:
=15-12÷4+5×2
= 15-3+5×2
= 15-3+10
= 25 - 3
=22
Thus, correct option is (d)

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