August 2018 1 49 Report
Suku ke 3 dan suku ke 7 barisan aritmetika berturut turut 10 dan 22. Jumlah 30 suku pertama barisan tersebut adalah..

a. 1.365
b. 1.425
c. 2.730
d. 2.850

Mohon penjelasannya yaa.. u/ mengerjakan soal un smp

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