CBSE Class 10 Answered
Two arithmetic progressions have the same numbers of term. The ratio of the last term of the first progression to the first term of the second progression is equal to the ratio of the last term of second progression to the first term of the first progression and is equal to 4. The ratio of the sum of n terms of the first progression to the sum of n terms of second progression is equal to 2. Find the ratio of their common difference and ratio of their nth term
Asked by acv27joy | 17 Dec, 2018, 03:49: PM
Expert Answer
Let a and d are first term and common difference of first A.P
Let b and e are first term and common difference of second A.P
Then as per the given information, we have,
From Eqn.(6), we have, ratio of first terms = 2/7 and from eqn.(9), ratio of common difference = 26
Answered by Thiyagarajan K | 19 Dec, 2018, 02:50: PM
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