The lifting capacity of the elevator in a residential building is about 400kg. will such an elevator

The lifting capacity of the elevator in a residential building is about 400kg. will such an elevator be able to lift all members of your family?

To solve it, you need to find out the weight of each family member and add the data. If the result is more than 400, then the elevator will not be able to lift everyone.
Example: in my family, dad weighs 85 kg, mom – 68 kg, son – 50 kg, daughter – 38 kg.
1) 85 + 68 + 50 + 38 = 241 (kg) – the whole family weighs.
2) 241 <400 – can.
Answer: the elevator will be able to lift all my family members.