The navy pilots are practicing flight formations. 200 pilots are practicing flying in rectangles. They want to make a rectangular formation with X planes in a row and Y planes in a column. If the
number of airplanes in a row is no less than 5 and no more than 40, how many different combinations of rectangular shapes are possible?	Choose the most appropriate option:
A) 6
B) 7
C) 8
D) 9
E) 10
firstly factors of 200 = 1,2,4,5,8,10,20,25,40,50,100,200   the question says each row will have airplanes not less than 5 and not more than 40,   therefore, we should be interested in the factors starting from 5 til 40 (inclusive)   5(in each row) * 40(number of columns) =200, similarly   8 * 25   10 * 20   20 * 10   25 * 8   40 * 5   total possibilities = 6   option 6
<result>A</result>
The navy pilots are practicing flight formations. 200 pilots are practicing flying in rectangles. They want to make a rectangular formation with X planes in a row and Y planes in a column. If the
number of airplanes in a row is no less than 5 and no more than 40, how many different combinations of rectangular shapes are possible?