Soal SMA · Soal cerita · Kesulitan 4/5

A university library recorded that the number of visitors doubled every 3 days during the exam week. If there were 40 visitors on the first day, how many visitors were there on the 10th day?

A.320
B.640
C.1280
D.2560

Kunci jawaban & pembahasan

Jawaban: 1280

The correct answer is 320.

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