Question

A lion's heart beats 12 times in 16 seconds. How many heartbeats will it have in 60 seconds? A) 3.2 heartbeats B) 36 heartbeats C) 45 heartbeats D) 60 heartbeats

Answer 1

12/16= 3/4 x/60=3/4 Cross multiply. 4x=180 Divide by 4 x=45

Answer 2

12 times in 16 seconds 24 times in 32 seconds 36 times in 48 seconds 48 times in 64 seconds Your answer is 45 heartbeats.