To determine how many basketballs the sports warehouse has based on the responses you've provided, we can see that the numbers repeat. The responses are:
- 150 (2 times)
- 90 (2 times)
- 1,800 (2 times)
- 180 (1 time)
If we consider the most frequently occurring numbers, both 150 and 1,800 appear twice, while 90 appears twice as well. Without additional context or a specified method for determining a "correct" answer, it might be appropriate to lean towards the larger values since warehouses typically hold larger quantities of inventory.
Therefore, the most reasonable assumption is that the sports warehouse may have either 1,800 basketballs or 150 basketballs.
If only one answer is acceptable and larger numbers are more indicative of warehouse stock, the best guess would be 1,800 basketballs.