Task: Question Answering
Input (English): Problem: the base of a triangle is 15 cm and height is 12 cm . the height of another triangle of double the area having the base 20 cm is : 
Options: ['a ) 22 cm', 'b ) 20 cm', 'c ) 18 cm', 'd ) 10 cm', 'e ) none of these']
Output (English): c