Question

7. A full moon occurs every 30 days. If the last full moon
occurred on a Friday, how many days will pass before a
full moon occurs again on a Friday?
​

Answer 1

Answer:

A full moon occurs every 30 days

A Friday occurs every 7 days

You must find out when those days will occur at the same time.

 

Simplest answer is 7 x 30 = 210 days

 

If you count by 30 you get : 30, 60,90,120,150,180,210 and you see that no number is divisible by 7 until you reach 210 so this is for sure the answer.  

Answer 2

Answer:

210 days

Step-by-step explanation:

FULL MOON = FRIDAY   (DAY-1)

FULL MOON = SUNDAY (DAY-30)

FULL MOON = TUESDAY (DAY-60)

FULL MOON = THURSDAY  (DAY-90)

FULL MOON = SATURDAY    (DAY-120)

FULL MOON = MONDAY        (DAY-150)

FULL MOON = WEDNESDAY    (DAY-180)

FULL MOON = FRIDAY               (DAY-210)

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