Which one of the following lies between 0.2 and 0.9?
0.4
0.8
0.9
Since 0.1 at tenths place has a number less than 2 whereas at tenths place 0.4, 0.8 and .399 has numbers between 2 and 9. 0.4, 0.8 and .399 is greater than 0.2 and lesser than 0.9.
So, 0.4,0.8 and .399 lies between 0.2 and 0.9.