If a doctor counts 80 heartbeats in 1 minute, then the frequency of h – McqOptions

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1.	If a doctor counts 80 heartbeats in 1 minute, then the frequency of heartbeats should be
A.	1.33 Hz
B.	1.99 Hz
C.	1.39 Hz
D.	2.33 Hz
Answer» B. 1.99 Hz

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