Question
Download Solution PDFIf ‘+’ means ‘×’, ‘-’ means ‘÷’, ‘×’ means ‘+’, and ‘÷‘ means ‘-', then which of the following equation would be correct?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven equation: 63 ÷ 84 + 7 - 6 × 48.
Decoding the given information :
| Symbol | + | × | - | ÷ |
| Means | × | + | ÷ | - |
Now, checking the options with replacing the sign from left to right and using BODMAS rule, we get :
Option 1) 32 ÷ 8 × 4 + 64 - 16 = 48
After interchanging the symbols, we get;
⇒ 32 - 8 + 4 × 64 ÷ 16 = 48
⇒ 32 - 8 + 4 × 4 = 48
⇒ 32 - 8 + 16 = 48
⇒ 48 - 8 = 48
⇒ 40 ≠ 48
⇒ LHS ≠ RHS
Option 2) 24 × 4 + 4 ÷ 64 - 16 = 60
After interchanging the symbols, we get;
⇒ 24 + 4 × 4 - 64 ÷ 16 = 60
⇒ 24 + 4 × 4 - 4 = 60
⇒ 24 + 16 - 4 = 60
⇒ 40 - 4 = 60
⇒ 36 ≠ 60
⇒ LHS ≠ RHS
Option 3) 32 - 4 ÷ 8 × 64 ÷ 16 = 36
After interchanging the symbols, we get;
⇒ 32 ÷ 4 - 8 + 64 - 16 = 36
⇒ 8 - 8 + 64 - 16 = 36
⇒ 72 - 8 - 16 = 36
⇒ 48 ≠ 36
⇒ LHS ≠ RHS
Option 4) 48 - 8 + 4 × 64 ÷ 16 = 72
After interchanging the symbols, we get;
⇒ 48 ÷ 8 × 4 + 64 - 16 = 72
⇒ 6 × 4 + 64 - 16 = 72
⇒ 24 + 64 - 16 = 72
⇒ 88 - 16 = 72
⇒ 72 = 72
⇒ LHS = RHS
Hence, the correct answer is "Option 4".
Last updated on Jun 30, 2025
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