Six dollars were exchanged for nickels and dimes. The number of nickels was the same as the number of dimes. How many nickels were there in the change ?
One day , Alex bought apples at 3 for 25 cents , and sold all of them at 2 for 25 cents. If she made a profit of $1 that day , how many apples did he sell ?
A certain natural number is divisible by 3 and also by 5. When the number is divided by 7, the remainder is 4. What is the smallest number that satisfies these conditions ?
The sum of the ages of three children is 32. The age of the oldest is twice the age of the youngest. The age of the two children differ by three years. What is the age of the youngest child?
A jar filled with water weighs 10 pounds. When half of the water is poured out, the jar and the remaining water weigh 5.75 pounds. How much does the jar alone weigh?
The product of two numbers is 504 and each of the numbers is divisible by 6. However, neither of the two numbers is 6. What is the largest of the two numbers?
