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If + means ÷, - means ×, ÷ means + and × means -, then which of the given equations is correct?
Question

If + means ÷, - means ×, ÷ means + and × means -, then which of the given equations is correct?

A.

2-40÷10÷6×8=5

B.

20÷7-30+6÷2=43

C.

10-2÷4×10+5=32

D.

10÷5-4×18+3=24

Correct option is D

Given:-

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}Solution:-2 - 40 + 10 ÷ 6 × 8 = 5

2 × 40 ÷ 10 + 6 - 8 = 5

8 +6 - 8 = 5

6 = not 5

20 ÷ 7 - 30 + 6 ÷ 2 = 43

20 + 7 × 30 ÷ 6 + 2

20 + 35 + 2

 = 57 not 43

10 - 2 ÷ 4 × 10 + 5 = 32

10 × 2 + 4 - 10 ÷ 5

20 + 4 - 2 = 22 not 32

10 ÷ 5 - 4 × 18 + 3 = 24

10 + 5 × 4 - 18 ÷ 3

10 + 20 - 18 ÷ 3

30 - 6

= 24

Thus, the correct answer is option (D) 10 ÷ 5 - 4 × 18 + 3 = 24

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