Questions / Quant trading, Numerical judgment
Marginal tiers versus a cliff
A hypothetical monthly data fee is $0.010 per request for the first 10,000 requests and $0.004 for each additional request. The lower rate applies only above the threshold. What is the total fee for 12,500 requests?
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Answer: 110 USD
- The first 10,000 requests cost $100. The remaining 2,500 cost $10, giving a total of $110. The discounted rate does not retroactively apply to the first tier.
Interview shortcut. Tiered: 10,000 × 0.010 + 2,500 × 0.004.
In the app this has a follow-up where one thing about the setup changes. Try the follow-up.