IPMAT Indore - Let S_1 = \100, 105, 110, 115, ... \ and S_2 = \100, 95, 90, 85, ... \ be two series in arithmetic progression. If a_k and b_k are the k-th terms of S_1 and S_2, respectively, then _k=1^20 a_k b_k equals __________. | PYQs + Solutions

IPMAT Indore

Algebra

Medium

137275

138250

137225

135375

✅ Correct Option: 2

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