Answer:
Number of problems that is left for Andrea to on Sunday =18
Step-by-step explanation:
Total number of problems Andrea had = 32
Problems solved by Andrea on Friday night was [tex]\frac{1}{4}[/tex] of the problems which is = [tex]\frac{1}{4}\times 32=8[/tex]
Problems now left =[tex]32-8=24[/tex]
Problems solved by Andrea on Saturday night was [tex]\frac{1}{4}[/tex] of the problems left which is = [tex]\frac{1}{4}\times 24=6[/tex]
∴ Number of problems that is left for Andrea to on Sunday= [tex]24-6=18[/tex]