The Holy Quran has approximately 600 pages. If we divide into 30 days, that’s 20 pages a day. You see, that’s difficult to do, right ? But if you divide it on the 5 prayers a day, it gets easier.
If you recite 4 pages after every prayer, you can complete the holy Quran in Ramadan.
If you want to complete the Holy Quran twice a month, you can recite 4 pages before the prayer and 4 pages after the prayer.
In this way you can easily complete the Holy Quran.