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QUESTION
total mass of people must be 450kg . ben andsome other people are in the lift.their total mass is 525 kg to the nearest5 kg. bengets out. he has a...
total mass of people must be 450kg . ben andsome other people are in the lift.their total mass is 525 kg to the nearest5 kg. bengets out. he has a mass of 78kg to the nearest kg. is the lift now safe to use?
