Arithmetic Ability
HCF and LCM

9 / 46

Q.

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

View Answer

Correct choice: C

Explanation:

Let the numbers be a and b . Then, a+b =55 and ab = 5 x 120 = 600. Therefore, Required sum = 1/a+1/b=a+b/ab=55/600=11/120
9 / 46