instruction:
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'.
question:
Problem: i flew my tiny seaplane to visit my mother . on the flight up , i flew at 110 mph . on the way home , i flew 90 mph . what was my average speed for the trip ?
Options: a ) 198 mph , b ) 110 mph , c ) 88 mph , d ) 100 mph , e ) 99 mph
answer:
d

question:
Problem: a can do a piece of work in 4 hours ; b and c together can do it in 2 hours , while a and c together can do it in 2 hours . how long will b alone take to do it ?
Options: a ) 12 , b ) 9 , c ) 8 , d ) 6 , e ) 4
answer:
e

question:
Problem: trapezoid jklm in the x - y plane has coordinates j = ( 2 , 1 ) , k = ( 2 , 1 ) , l = ( 6 , 7 ) , and m = ( 6 , 1 ) . what is its perimeter ?
Options: a ) 34 , b ) 36 , c ) 31 , d ) 40 , e ) ( f ) 42
answer:
c