Sara woke up at 5.30 am. She wanted to spend the day according to a timetable. She spent 1⁄2 an hour arranging the timetable. Then she started working according to that. She spent 1⁄4 of an hour on praying and another 20 minutes taking a wash. She had to study till she got the first break. If she got her brake time at 10.30 am what is the time she spent on studying before her break time