Hᴇʏ! Hope that I can help!
To do this, we need to divide the 70 people by the 2 people per minute.

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Answer: 35 minutesIf you were helped by my answer, remember that I worked really hard on it. Please click the [ ♥ ᴛʜᴀɴᴋs ] button below and give me a rating of ★★★★★ to show your appreciation.