General Studies · Mathematical Operations
यदि निम्नलिखित समीकरण में '÷' और '×' को आपस में बदल दिया जाए तथा '+' और '−' को आपस में बदल दिया जाए, तो प्रश्नवाचक चिन्ह '(?)' के स्थान पर क्या आएगा? 31 − 5 ÷ 7 + 27 × 9 = ?
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