Question

Lily is behind on her homework. The ritualistic teacher assigned exactly 5 homework assignments every day for the past 9 learning days. Here is the amount of homework assignments Lily has been able to get done each night (if she didn’t finish some of the 5 assignments from the night before, she would start work on them the next day): 3, 6, 2, 4, 3, 7, 1, 3, 2. If Lily doesn’t finish all her assignments, she won’t be able to go on a fun field trip next month. Lily can’t do more than 10 assignments in one night. There is one more homework night, with 5 more assignments. Can Lily still make it to the field trip?

Answer 1

she cannot go on the field trip.

Explanation:

Day 1 = 5, done = 3, remaining = 2.

Day 2 = 2 + 5, done = 6, remaining = 1

Day 3 = 1 + 5, done = 2, remaining = 4

Day 4 = 4 + 5, done = 4, remaining = 5

Day 5 = 5 + 5, done = 3, remaining = 2 + 5

Day 6 = 2 + 5 + 5, done = 7, remaining = 5

Day 7 = 5 + 5, done = 1, remaining = 4 + 5

Day 8 = 4 + 5 + 5, done = 3, remaining = 1 + 5 + 5

Day 9 = 1+ 5+ 5+ 5, done = 2, remaining = 4+5+5

Day 10 = 4+5+5+5, done = 10(maximum assignment done assumed), remaining = 4 + 5

At the end of day 10, she had 9 remaining assignments, so she cannot go on the field trip.