Shalat in a week
I discovered something kinda cool.
When a Muslim prays, he read a 2 surah from the Quran, this is observed in all the 5 prayers in a day. Taking a week as a guide, a week(1) has seven days(7), with a total of 10 times surah read in a day
1 7
10 = 19 x 90.0000
 
By Hasan