If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to:
Choose the most appropriate option.
A) 11/122
B) 11/120
C) 11/121
D) 11/140
E) 11/111
Explanation:   Let the numbers be a and b.   Then, a + b = 55 and ab = 5 x 120 = 600.   The required sum   Answer: 11/120) 11/120
<result>B</result>
If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to: