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If (S_n=3160), what will be the value of (S_n-S_{n-5})?यदि (S_n=3160), तो (S_n-S_{n-5}) का मान क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (390)(390)
(3160=S_{79}), so (S_{79}-S_{74}=75+76+77+78+79=385), not (390). Always match options with the final calculation.(3160=S_{79}), इसलिए (S_{79}-S_{74}=75+76+77+78+79=385) नहीं बल्कि सही मान (385) है। विकल्पों को अंतिम गणना से जरूर मिलाएं।
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