Maria and John start cycling toward each other from two points, A and B, respectively. Keeping in mind that John passes through B 1 hour earlier than Maria passes through A. The distance between A and B is 60 kilometers. Leer más…

Clases GMAT, GRE, SAT QUANT +56 937780070. Open Your Mind! Nivelación profesional de competencias QUANT.
Maria and John start cycling toward each other from two points, A and B, respectively. Keeping in mind that John passes through B 1 hour earlier than Maria passes through A. The distance between A and B is 60 kilometers. Leer más…
Problem Solving Word Problems , Mixtures Proportions Ratio GMAT QUANT
GMAT QUANT Problem Solving Level 600 700, Mixtures proportions ratios 40% of a club’s revenue comes from people of 25 years of age while 60% of its revenue comes from people of 35 years of age. If the club raises Leer más…
GMAT QUANT Problem Solving Level 600 700 , Mixtures proportions ratios A grocer has 400 pounds of coffee in stock, 20 percent of which is decaffeinated. If the grocer buys another 100 pounds of coffee of which 60 percent is Leer más…
GMAT QUANT Problem Solving Level 500 600 Mixtures proportions ratio We have 100 ml of hot water (at temperature x°C) and 200 ml of water at 48°C. What is the temperature of hot water x°C when the resulting mixture has Leer más…
How many liters of chlorine must be added to a 500-liter solution that is 20% chlorine to produce a solution that is 30% chlorine? A) 40 B) 59 C) 100 D) 49 E) 70
Mixtures proportions Ratio Problems Solving Level 600 700 You have 5 tons of a certain mineral A costing $5,000, 20 tons of another mineral B costing $10,000, and 10 tons of a third mineral C costing $20,000. By mixing the Leer más…
Ratio Mixtures Problem Solving, level 500 600 Premium tea is $0.6 per ounce and super premium tea is $0.9 per ounce. If the mix of premium and super premium costs $7 for 10 ounces, what is the approximate share of Leer más…
Proportions Ratios Mixture. Word Problems The average sales for the year 2021 was 540,000 dollars, if in 4 months of that year the average sale was 200,000, what was the average sale, in dollars, of the other months of that Leer más…