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Let a,b,c>1, a^3,b^3 and c^3 be in A.P., and \log_a b,\ \log_c a and \log_b c be in G.P. If the sum of first 20 terms of an A.P., whose first term is \dfraca+4b+c3 and the common difference is \dfraca-8b+c10, is -444, then abc is equal to: | Watch the step-by-step video solution for this NIMCET PYQ.