Task: Question Answering
Input (English): Problem: the cross - section of a cannel is a trapezium in shape . if the cannel is 5 m wide at the top and 3 m wide at the bottom and the area of cross - section is 3800 sq m , the depth of cannel is ? 
Options: a ) 920 , b ) 930 , c ) 940 , d ) 950 , e ) 960
Output (English): d