Question
Download Solution PDFBy Interchanging the given two numbers which of the following equation will be correct?
8 and 2
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
By option Method:
Option 1 : exchange 8 and 2 in 7 ÷ 2 – 8 × 4 + 1 = 0
⇒ 7 ÷ 8 – 2 × 4 + 1 = 0
⇒ 0.87 - 8 + 1 =0
⇒ -6.125 ≠ 0
This is not correct the equation.
Option 2 : exchange 8 and 2 in 2 × 4 – 8 + 5 ÷ 1 = 50
⇒ 8 × 4 – 2 + 5 ÷ 1 = 50
⇒ 32 - 2 + 5 = 50
⇒ 35 ≠ 50
This is not correct the equation.
Option 3 : exchange 8 and 2 in 8 × 4 + 6 – 2 ÷ 1 = 6
⇒ 2 × 4 + 6 – 8 ÷ 1 = 6
⇒ 8 +6 -8 = 6
⇒ 6 = 6
This is correct the equation.
Option 4 : exchange 8 and 2 in 8 × 4 – 9 ÷ 3 + 2 = 35
⇒ 2 × 4 – 9 ÷ 3 + 8 = 35
⇒ 8 - 3 + 8 = 35
⇒ 13 ≠ 35
This is not correct the equation.
Hence, 'Option 3' is the correct answer.
Last updated on Jun 25, 2025
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