Question

# Three numbers are in the ratio 1:2:3 and their H.C.F. is 12. Then the square root of largest number is

Solution

Ans: 6 Let the required numbers be ( y, 2 y ) and ( 3 y ) H.C.F. ( (y, 2 y, 3 y)=y Rightarrow y=12 )

( therefore quad ) The numbers are 12,24 and 36

( therefore quad sqrt{36}=6 )