Because over a period of time, she has become familiar with his way of thinking about their limited budget.
١١ مَاذَا يَجِبُ أَنْ نَسْأَلَ أَنْفُسَنَا عِنْدَمَا نَقْرَأُ أَوْ نَدْرُسُ ٱلْكِتَابَ ٱلْمُقَدَّسَ ؟‏