Solution Y is 30 percent liquid X and 70 percent water. If 2 kilograms of water evaporate from 8 kilograms of solution Y and 2 kilograms of solution Y are added to the remaining 6 kilograms of liquid, what percent of this new solution is liquid X?
B) 100/3 %
C) 75/2 %
Rodrick mixes a martini that has a volume of ‘n’ ounces having 40% Vermouth and 60% Gin by volume. He wants to change it so that the martini is 25% Vermouth by volume. How many ounces of Gin must he add?
A man lent $2000, part of this at 4% and the rest at 6% per annum simple interest. The whole annual interest amounted to $92. How much did he lend at 6%?
A mixture of milk and water measures 60 gallons. It contains 20% water. How many gallons of water should be added to it so that water may be 25%?
a) 6 gallons
b) 4 gallons
c) 8 gallons
d) 10 gallons
e) 5 gallons
A particular shade of green is formed by mixing 30% of yellow paint to 70 % blue paint by volume. How many gallons of yellow paint should be added to 70 gallons of this green paint to reduce the percentage of blue paint by 10 %.
A 30% solution of barium chloride is mixed with 10 grams of water to form a 20% solution. How many grams of original solution did we start with ?