Problems on HCF and LCM - General Aptitude

Q1:

The G.C.D. of 1.08, 0.36 and 0.9 is:

A 0.03

B 0.9

C 0.18

D 0.108

ANS:C - 0.18

Given numbers are 1.08, 0.36 and 0.90.   H.C.F. of 108, 36 and 90 is 18,  H.C.F. of given numbers = 0.18.