Question
Download Solution PDFWhich two signs should be interchanged to make the below equation mathematically correct?
112 - 8 + 96 ÷ 16 × 20 = 0
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF1. + and ÷
112 - 8 ÷ 96 + 16 × 20 = 0
⇒ 112 - 0.083 + 320 = 0
⇒ 432 - 0.083 = 0
⇒ 431.917 ≠ 0
2. - and +
112 + 8 - 96 ÷ 16 × 20 = 0
⇒ 112 + 8 - 6 × 20 = 0
⇒ 112 + 8 - 120 = 0
⇒ 120 - 120 = 0
⇒ 0 = 0
3. × and ÷
112 - 8 + 96 × 16 ÷ 20 = 0
⇒ 112 - 8 + 96 × 0.8 = 0
⇒ 112 - 8 + 76.8 = 0
⇒ 188.8 - 8 = 0
⇒ 180.8 ≠ 0
4. - and ×
112 × 8 + 96 ÷ 16 - 20 = 0
⇒ 896 + 6 - 20 = 0
⇒ 902 - 20 = 0
⇒ 882 ≠ 0
Hence, '- and +' is the correct answer.
Last updated on Jul 8, 2025
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