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Let a1, a2, a3.......... be in A.P. and ...

Let `a_1, a_2, a_3..........` be in `A.P. and h_1,h_2,h_3.....`,in `H.P.` If `a_1=2 = h_1, and a_30=25=h_30` then `a_7h_24+ a_14 + a_17=`

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