A mobile battery in 1 hour charges to 20 percent.How much time (in minute) will it require more to charge to 60 percent.  Answers:
A) 145
B) 150
C) 175
D) 180
E) 130
1 hr =20 percent.Thus 15 min=5 percent .Now to charge 60 percent 180 min.Answer:180
<result>D</result>
A mobile battery in 1 hour charges to 20 percent.How much time (in minute) will it require more to charge to 60 percent.