What will come in place of the question mark (?)

What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘\(\times\)’ and ‘\(\div\)’ are interchanged?
यदि निम्नलिखित समीकरण मे ‘+’ और ‘-‘ को आपस मे बदल दिया जाए ‘\(\times\)’ और ‘\(\div\)’ को भी आपस में बदल दिया जाए ‘?’ के स्थान पर क्या आएगा,
\(4515 \times 5 -431 \div 3 + 821 =?\)

1375 1775 1575 1335

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