If the sum of two numbers is 60 and the H.C.F and L.C.M of these numbers are 3 and 120 respectively, then the sum of the reciprocal of the numbers is equal to:
Select
A) 2/9  B) 4/5  C) 1/6  D) 6/6  E) 3/9
Let the numbers be a and b.   Then, a + b = 60 and ab = 3 * 120= 
<gadget id="calculator">3 * 120</gadget>
<output>360</output>
360.   Required sum= 1/a + 1/b = (a + b)/ab = 60/360 = 1/6.   ANSWER:1/6
<result>C</result>
If the sum of two numbers is 60 and the H.C.F and L.C.M of these numbers are 3 and 120 respectively, then the sum of the reciprocal of the numbers is equal to: