Express 71

Express 2 minutes 30 seconds as a fraction of 3/4 hours.

Correct answer:

x =  1/18

Step-by-step explanation:

t1=2+6030=602 60+6030=60120+6030=60120+30=60150=25=221=2.5 min  t2=43 60=43 60=4180=45 min  x=t2t1=4525=181=0.0556

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