abadmaev6231 abadmaev6231

22-02-2024
Mathematics

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Let a,b,c>1,a3,b3 and c3 be in A.P., and logab,logca and logbc be in G.P. If the sum of first 20 terms of an A.P., whose first term is 3a+4b+c and the common difference is 10a−8b+c is −444, then abc is equal to:
A. 343
B. 216
C. 343/8
D. 125/8

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