Q1:
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:
A
601
55
B
120
11
C
11
120
D
55
601
ANS:C -
11
120
Let the numbers be a and b.
Then, a + b = 55 and ab = 5 x 120 = 600.