Two bodies, A(of mass 1kg) and B(of mass 3kg), are dropped from heights of 16 m and 25 m respectively. The ratio of the time taken by them to reach the ground is:-

Question

( A ) $\frac 5 4$
( B ) $\frac {5}{ 12}$
( C ) $\frac 4 5$
( D ) $\frac {12} 5$