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ben has finished homewok during holiday.he does 2/3 of remaining question each days. after 4 days, 4 question are left .how many question he all together to do ?

  • math -

    I assume you mean he has unfinished homework.

    Each day he has 3 times as many questions as on the next day. So,

    after 4 days he had 4 questions left
    after 3 days he had 12 questions
    after 2 days he had 36 questions
    after 1 day he had 108 questions
    He started with 324 questions.

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