If ‘–’ stands for ‘+’, ‘+’ stands for ‘×’, ‘×’ stands for ‘–’, then which is correct ?
Answer & explanation
Correct answer: option 3
7 + 28 – 3 × 52 = 147
After applying signs
7 + 28 – 3 × 52
7 × 28 + 3 -52
196 + 3 -52
147 = 147 (hence proved)
If ‘–’ stands for ‘+’, ‘+’ stands for ‘×’, ‘×’ stands for ‘–’, then which is correct ?
Correct answer: option 3
7 + 28 – 3 × 52 = 147
After applying signs
7 + 28 – 3 × 52
7 × 28 + 3 -52
196 + 3 -52
147 = 147 (hence proved)