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'.

Q: Problem: express 35 mps in kmph ? 
Options: a ) 122 , b ) 188 , c ) 126 , d ) 140 , e ) 124

A: c
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Q: Problem: the ratio between the speeds of two trains is 7 : 8 . if the second train runs 400 km in 4 hours , what is the the speed of the first train ? 
Options: a ) 87.0 , b ) 87.5 , c ) 87.2 , d ) 87.1 , e ) 87.4

A: b
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Q: Problem: what is the least number of square tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad ? 
Options: a ) 724 , b ) 804 , c ) 814 , d ) 844 , e ) none

A:
c
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