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Sequences and Series · 2023 · Shift 1

1 Mathematics questions from this JEE Advanced paper

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JEE Advanced
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2023 · Shift 1
Mathematics
Sequences and Series

Sequences and Series · 2023 · Shift 1

1 Mathematics questions from this JEE Advanced paper

Q27.Let $7 5 \dots 5 r 7$ denote the $(r + 2)$ digit number where the first and the last digits are 7 and the remaining $r$ digits are 5 . Consider the sum $S = 77 + 757 + 7557 + \dots + 7 5 \dots 5 98 7$ . If $S = \frac{7 5 \dots 5 99 7 + m}{n}$ …
Mathematics · Sequences and Series · Numerical