I wanted to know how to prepare for quant.
I wanted to know which question banks to use for good practice.
There isn't just one way of going about it. You can do it in many ways depending on your requirement (current ability, current scores, willingness to put in time and effort, desired score etc). For general advice, check out the GMAT Quant forum here. For more specific advice, you will need to invest some time and tell us all you can about your current situation.
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