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Q: Which two numbers should be interchanged to make the given equation correct? 72 x 9 + 27 ÷ 3 – 6 = 213
  • A. 9, 6
  • B. 9, 3
  • C. 72, 27
  • D. 72, 6
Correct Answer: Option B - On interchanging two number 9 and 3 in the equation, 72 x 3 + 27 ÷ 9 – 6 = 213 216 + 3 – 6 = 213 219 – 6 = 213 213 = 213 L.H.S. = R.H.S. Hence option (b) is correct.
B. On interchanging two number 9 and 3 in the equation, 72 x 3 + 27 ÷ 9 – 6 = 213 216 + 3 – 6 = 213 219 – 6 = 213 213 = 213 L.H.S. = R.H.S. Hence option (b) is correct.

Explanations:

On interchanging two number 9 and 3 in the equation, 72 x 3 + 27 ÷ 9 – 6 = 213 216 + 3 – 6 = 213 219 – 6 = 213 213 = 213 L.H.S. = R.H.S. Hence option (b) is correct.