A mobile battery in 1 hour charges to 20 percent.How much time (in minute) will it require more to charge to 30 percent.
Choose the correct answer:
A) 145
B) 90
C) 175
D) 160
E) 130
1 hr =20 percent.Thus 15 min=5 percent .Now to charge 30 percent 90 min.Answer:90
<result>B</result>
A mobile battery in 1 hour charges to 20 percent.How much time (in minute) will it require more to charge to 30 percent.