निम्नलिखित समीकरण को सही बनाने के लिए किन दो चिन्हों और किन दो संख्याओं को आपस में बदला जाना चाहिए? 630 + 6 - 5 ÷ 40 × 10 = 295

What will come in place of the question mark (?) in the following equation, if '+' and '-' are interchanged and '×' and '÷' are interchanged? 37 ÷ 5 - 91 + 16 × 4 = ?

If '+' and '-' are interchanged, and '×' and '÷' are interchanged, then what will come in place of the question mark (?) in the following equation? 26 ÷ 676 × 156 - 69 + 83 = ?