For her mobile phone service Divya pays Rs. 145 per month and 75 paise for each extra minute she talks over the allowed number of minutes in the monthly plan. She received a bill of Rs. 178 last month. How many extra minutes did she use her phone beyond the allowed time.
letextraminutesbexthenextracharge=178−145=33Rs∴numberofextraminutes(330.75)=44min