An interval of 3 hours 40 minutes is wrongly estimated and 3 hours 45.5 minutes. The error percentage is 


(a) 
2.5 
(b) 
5 
(c) 
5.2 
(d) 
5.5 
An interval of 3 hours 40 minutes is wrongly estimated and 3 hours 45.5 minutes. The error percentage is 


(a) 
2.5 
(b) 
5 
(c) 
5.2 
(d) 
5.5 
Correct time = 3 hrs 40 min = min = 220 min.
Error = 5.5 min.
Error % =