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. Maria’s cycling pace is 15 kilometers per hour, while Juan’s is 20 kilometers per hour. How far did John travel when they met?

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…

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 its fee by 20% for its 25 years old members and 30% for 35 years old members, what is the percentage increase in overall revenue of the club?

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…

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 decaffeinated, what percent, by weight, of the grocer’s stock of coffee is decaffeinated?

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…

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 three minerals, a new material is obtained that costs $1,500 per ton. Considering that in the mixture the participation of B is double that of A, in what percentage is C present in the mixture?

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…

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 super premium in this mix?

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…