In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
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Question: Problem: how many 4 x 5 x 8 cubes could fit in a 10 x 16 x 84 box ? 
Options: a ) 84 , b ) 90 , c ) 85 , d ) 77 , e ) 64

Answer: a


Question: Problem: the area of a rectangular plot is 18 times its breadth . if the difference between the length and the breadth is 10 metres , what is its breadth ? 
Options: a ) 10 metres , b ) 8 metres , c ) 7.5 metres , d ) data inadequate , e ) none of these

Answer: b


Question: Problem: in the coordinate plane , one of the vertices of a square is the point ( - 5 , - 4 ) . if the diagonals of that square intersect at point ( 3 , 2 ) , what is the area of that square ? 
Options: a ) 100 , b ) 225 , c ) 169 , d ) 256 , e ) 324

Answer:
d