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5732Scheduling Jobs Before Their DeadlinesFive jobs each take exactly one hour of machine time on a single machine, which can run one job per hour starting at hour 1. Each job earns its profit only if it is completed by its deadline (the hour by which it must finish); a job finished after its deadline, or not run at all, earns nothing. The jobs are: A (deadline 2, profit 100), B (deadline 1, profit 19), C (deadline 2, profit 27), D (deadline 1, profit 25), E (deadline 3, profit 15). You choose which jobs to run and in what order. What is the maximum total profit obtainable?脑筋急转弯困难brainteaser未尝试面试订阅5733Minimum Boats to Carry EveryoneFive people weighing 50, 50, 70, 80, and 90 kilograms must cross a lake. Each boat can carry at most two people and at most 140 kilograms total. Assume you have as many boats as you like, all departing together, so you only care about how many boats are required (not return trips). What is the minimum number of boats needed so that everyone can cross?脑筋急转弯中等brainteaser未尝试免费5736Sub-One-Percent of a Large NotionalWhat is 0.35% of 4,400,000?脑筋急转弯中等数值题未尝试免费5738Eighths to DecimalConvert the fraction 7/8 to a decimal in your head.脑筋急转弯简单数值题未尝试免费5739Compound Versus Simple Interest Gap1,000,000 earns 5% per year for 2 years. How much more does compound interest yield than simple interest over the two years?脑筋急转弯中等数值题未尝试免费5740Basis Points to DollarsA spread of 35 basis points is charged on a notional of 8,000,000. What is the dollar amount?脑筋急转弯简单数值题未尝试免费5741Reciprocal of a Small DecimalEstimate 1 divided by 0.016 mentally.脑筋急转弯中等数值题未尝试免费5742Blended Portfolio YieldA portfolio holds 60% of its value in an asset yielding 4% and 40% in an asset yielding 9%. What is the blended portfolio yield?脑筋急转弯中等数值题未尝试免费5743Quick Square-Root EstimateEstimate the square root of 2000 to one decimal place mentally.脑筋急转弯中等数值题未尝试免费5746What Percent Is X of Y45 is what percent of 360? Work it out mentally.脑筋急转弯简单数值题未尝试免费5748Odds to Implied ProbabilityAn event is quoted at 3-to-1 odds against. What is the implied probability that it happens?脑筋急转弯简单数值题未尝试免费5749Dividing by NineDivide 5000 by 9 mentally and give the result to two decimal places.脑筋急转弯中等数值题未尝试免费5750Quick Cube-Root EstimateEstimate the cube root of 30,000 to one decimal place mentally.脑筋急转弯中等数值题未尝试免费5957The Busiest Bin3 balls are thrown independently and uniformly into 3 bins. Let M be the maximum load, i.e. the number of balls in the most-loaded bin. What is E[M]?概率中等数值题未尝试免费5992Most Likely Number of FillsFills on a passive order arrive as a Poisson process with rate 7 per hour. Over a fixed 30-minute window, what is the single most likely number of fills (the mode of the count distribution)?概率中等数值题未尝试免费