A 73kg worker needs to transport concrete bricks using a trolley to the construction area via an elevator. The trolley weighs 1000kg while 5 concrete bricks weigh 330kg. If the elevator has a maximum capacity of 1500kg, how many bricks can the worker transport at one time?

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To find out how many bricks the worker can transport at one time, we need to calculate the total weight of the worker, the trolley, and the bricks. Let's break it down step by step:

1. Worker's weight: The worker weighs 73kg.
2. Trolley's weight: The trolley weighs 1000kg.
3. Weight of 5 concrete bricks: 5 concrete bricks weigh 330kg.

Now, let's calculate the total weight:

Worker's weight + Trolley's weight + Weight of 5 concrete bricks

= 73kg + 1000kg + 330kg
= 1403kg

The total weight is 1403kg.

Since the elevator has a maximum capacity of 1500kg, the worker can transport the maximum number of bricks that will not exceed the elevator's capacity.

Therefore, the worker can transport a maximum of 0 bricks at one time, as the total weight (1403kg) exceeds the elevator's capacity (1500kg). In this case, the worker will need to make multiple trips to transport the concrete bricks.