Question
Download Solution PDFBy interchanging the given two signs which of the following equation will be correct?
+ and -
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFAfter interchanging '+ and -' in the options, we get:
1. 7 + 5 × 3 - 24 ÷ 6 = 7
⇒ 7 + 5 × 3 - 24 ÷ 6 = 7
⇒ 7 + 5 × 3 - 4 = 7
⇒ 7 + 15 - 4 = 7
⇒ 22 - 4 = 7
⇒ 18 ≠ 7
2. 20 ÷ 4 + 5 × 6 - 3 = 32
⇒ 20 ÷ 4 + 5 × 6 - 3 = 32
⇒ 5 + 5 × 6 - 3 = 32
⇒ 5 + 30 - 3 = 32
⇒ 35 - 3 = 32
⇒ 32 = 32
3. 4 - 5 × 2 + 9 ÷ 3 = 5
⇒ 4 - 5 × 2 + 9 ÷ 3 = 5
⇒ 4 - 5 × 2 + 3 = 5
⇒ 4 - 10 + 3 = 5
⇒ 7 -10 = 5
⇒ -3 ≠ 5
4. 7 × 3 + 10 - 8 ÷ 2 = 29
⇒ 7 × 3 + 10 - 8 ÷ 2 = 29
⇒ 7 × 3 + 10 - 4 = 29
⇒ 21 + 10 - 4 = 29
⇒ 31 - 4 = 29
⇒ 27 ≠ 29
Hence, '20 ÷ 4 - 5 × 6 + 3 = 32' is the correct answer.
Last updated on Jul 12, 2025
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