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
Let the numbers be a and b.   Then, a + b = 45 and ab = 5 * 4= 
<gadget id="calculator">5 * 4</gadget>
<output>20</output>
20.   Required product= 1/a * 1/b = 1/ab = 1/20= 1/20.   ANSW1/20R:1/20
<result>E</result>
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: