Directions :
In a 250 m race, Radhika beats Geetika by 12.5 m; and Geetika beats Dhaavika by 25 m in a 300 m race.
If Geetika runs 100 m in 12 seconds, by how much time will Dhaavika lose to Geetika in an 800 m race?
8.7 sec
7.1 sec
5.8 sec
4.9 sec
6.2 sec