June 2019 1 20 Report
Suatu deret aritmetika mempunyai suku ke-5 bernilai 30 dan suku ke-12 bernilai 16. Jumlah ke-30 suku pertama deret tersebut adalah?
A. 180
B. 210
C. 240
D. 270
Beserta caranya ya... terima kasih :)
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