Anamika goes 40 km at a speed 'y' km/h and comes back to the original point with a speed (y - 10) km/h which takes time "t" hours. Now, if Anamika goes 40 km with speed (y/2) km/h and comes back to the original point with speed 2(y - 10) and takes "t" hours and 16 minutes, then what is the value of 'y'?
1
25 and 60
2
15 and 45
3
26 and 65
4
18 and 43
5
10 and 12