Between 1 and 31, m arithmetic means are inserted so that the ratio of 7th and (m - 1)th…
Mathematics · JEE Main · NTA Exams — Progression and Series
Between 1 and 31, m arithmetic means are inserted so that the ratio of 7th and (m - 1)th means is 5 : 9 then, the value of m is
- 16
- 18
- 12
- 14
Answer
(B) 18
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