Question
Download Solution PDFWhich two numbers, from amongst the given options, should be interchanged to make the given equation correct?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven :
Calculation:
By option Method:
Option 1 : exchange 18, 11
⇒
⇒11 + 72 + 9 x 4 + 3 - 18 = 112
⇒ 11 + 72 + 36 +3 -18 = 112
⇒ 104 ≠ 112
This is not correct the equation.
Option 2 : exchange 12, 4
⇒
⇒ 18 + 24 + 9 x 12 + 3 -11 = 112
⇒ 18 + 24 + 108 + 3 -11 = 112
⇒ 142 ≠ 112
This is not correct the equation.
Option 3: exchange 6, 4
⇒
⇒ 18 + 48 + 9 x 6 + 3 -11 = 112
⇒ 18 + 48 + 54 + 3 -11 = 112
⇒ 112 = 112
This is correct the equation.
Option 4: exchange 18, 12
⇒
⇒ 12 + 108 + 9 x 4 +3 -11 =112
⇒ 12 + 108 + 36 +3 -11 =112
⇒ 148 ≠ 112
This is not correct the equation.
Hence, 'Option 3' is the correct answer.
Last updated on Jul 19, 2025
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