General Studies · Mathematical Operations
यदि '+' और '-' को आपस में बदल दिया जाता है और 'x' और '÷' को आपस में बदल दिया जाता है, तो निम्नलिखित समीकरण में प्रश्न चिह्न (?) के स्थान पर क्या आएगा? 154 ÷ 2 - 49 ÷ 7 + 10 x 5 + 28 x 7 - 25 ÷ 5 = ?
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770
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