Question

A student observed the apparent shape of the moon every night for a period of 60 days. On Day 10 the student observed a full moon. On which day did the student most likely observe a full moon?
A. Day 20
B. Day 30
C. Day 40
D. Day 50

I think it's C cause it takes about 30 days to see a full moon again
Ms. Sue
Right!
bobpursley
It is actually 27.3 days + Day 10.

I don't like your choices, but the best is as you indicated.

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