In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
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Question: Problem: a cyclist bikes x distance at 8 miles per hour and returns over the same path at 10 miles per hour . what is the cyclist ' s average rate for the round trip in miles per hour ? 
Options: a ) 8.1 , b ) 8.9 , c ) 8.6 , d ) 8.3 , e ) 9.0

Answer: b


Question: Problem: what percent of a day is 7 hours ? 
Options: a ) 29.2 % , b ) 12.5 % , c ) 13 % , d ) 11.3 % , e ) none of these

Answer: a


Question: Problem: a train is 360 meter long is running at a speed of 36 km / hour . in what time will it pass a bridge of 140 meter length ? 
Options: a ) 50 seconds , b ) 29 seconds , c ) 40 seconds , d ) 11 seconds , e ) 12 seconds

Answer:
a