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...
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:
Answer/Solution
11/120
Steps/Work
given a+b=55,hcm and lcm is 5 and 120
axb=lcmx hcf
600=120x5
1/a+1/b=a+b/ab=>55/600=>11/120
ANSWER:C
axb=lcmx hcf
600=120x5
1/a+1/b=a+b/ab=>55/600=>11/120
ANSWER:C