Task: Question Answering
Input (English): Problem: if the sum of two numbers is 45 and the h. c. f and l. c. m of these numbers are 4 and 5 respectively, then the product of the reciprocals is equal to :
Options: a. 20 / 20, b. 1 / 1, c. 2 / 30, d. 11 / 20, e. 1 / 20
Output (English): e