medium · GMAT Quant
A stock trader has two automated algorithms. Algorithm A places 20 trades per minute. After 15 minutes, Algorithm B starts placing 50 trades per minute to counteract A. After B has been active for 5 minutes, A stops.
How many minutes after A stops will Algorithm B have placed the same total number of trades as Algorithm A?
- 3
- 8
- 15
- 5
- 10
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