20 kitap× 4kutu= 80 kitap
80.45 =36
100
36 kitap 30tl den ise 36×30=1080TL_ Cumartesi
80-36=44 kitap 25tl den ise 44×25=1100TL_ Pazar
yani 1100TL-1080TL = 20TL
Pazar 20 TL fazla= B
