I need help with this math problem
2 answers:
4 hours
Because 12 times by 3 is 36 so you times 1 hr and 20 mins by 3
1 hr 20+1 hr 20+ 1hr 20 = 4 hrs
She did 12 questions, and needs to do 36.
36 / 12 = 3, so it will take 3 times as long.
1 hour 20 minutes times 3 = 4 hours.
It will take her 4 hours.
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