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Mathematics, 12.12.2019 08:31 seanisom7

Apropeller rotates 6 times every 15 seconds. based on this information, which of the following could not be true?

a. the propeller rotates 30 times in 90 seconds.
b. the propeller rotates 24 times in one minute.
c. the propeller rotates 18 times in 45 seconds.
d. the propeller rotates 12 times in 30 seconds.

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