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SSC MTS 2021 · PYQ · Mathematical Operations · medium

Which of the mathematical signs should be interchanged in the given equation to make it mathematically correct? 31 ÷ 14 × 9 + 3 – 7 = 66

  1. A.– and +
  2. B.÷ and +✓ Correct
  3. C.÷ and ×
  4. D.– and ×

Explanation

Replacing ÷ with + and + with ÷: 31 + 14 × 9 ÷ 3 – 7 = 31 + 14 × 3 – 7 = 31 + 42 – 7 = 66. This confirms option (a) is correct.
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