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Math How many liters of pure alcohol must be added to a 40-liter solution that is 10% alcohol by volume in order to double the alcohol proportion? A. 4 B.…
Posts published by “Miranda Menestrina”
Math Mac can finish a job in days and Jack can finish the same job in days. After working together for days, Mac left and Jack alone worked to complete…
Math Three workers, A, B, and C, can complete a certain task in 10, 5 and x hours respectively. A starts working alone and 2 hours later B joins. After…
Math It takes computer A 6 hours and 40 minutes to finish a job. If computer B can process the same job in 10 hours, how long will it take,…
Math A cook went to a market to buy some eggs and paid $12. But since the eggs were quite small, he talked the seller into adding two more eggs,…
Math A train is traveling at a constant speed from city A to city B. Along this trip the train makes three one-hour stops and reaches city B. At city…
Math A bus leaves city and travels to city at a constant speed, at the same time another bus leaves city and travels to city at the same constant speed.…
Math Set A consist of 10 terms, each of which is a reciprocal of a prime number, is the median of the set less than 1/5? (1) Reciprocal of the…
Math Out of 100 people surveyed, 60 were women. If 10 were smoking women and 20 were smoking men, what percentage of men surveyed were non-smokers? A. 10 B. 20…
Math A set of 11 different integers has a median of 25 and a range of 50. What is the greatest possible integer that could be in this set? A.…