A mobile battery in 1 hour charges to 20 percent.How much time (in minute) will it require more to charge to 65 percent. Answers:
A) 145
B) 150
C) 195
D) 160
E) 130

Rationale: 1 hr = 20 percent . thus 15 min = 5 percent . now to charge 65 percent 195 min . answer : c
Answer: C