The H.C.F. and L.C.M. of 0.63, 1.05 and 2.1  Choices
A) (i)0.20(ii)6.31 B) (i)0.21(ii)5.30 C) (i)0.21(ii)6.30 D) (i)1.21(ii)6.50 E) None of these
Explanation :   Making the same number of decimal places, the given numbers are 0.63, 1.05 and 2.10.   Without decimal places, these numbers are 63, 105 and 210.   Now, H.C.F. of 63, 105 and 210 is 21.   H.C.F. of 0.63, 1.05 and 2.1 is 0.21.   L.C.M. of 63, 105 and 210 is 630.   L.C.M. of 0.63, 1.05 and 2.1 is 6.30.   ANSWER IS (i)0.21(ii)6.30
<result>C</result>
The H.C.F. and L.C.M. of 0.63, 1.05 and 2.1