Paula is twice as old as Queenie. Seven years ago the sum of their ages was 16. How old is Queenie now?

For what value of x will x be the average of 2, 4x, 6, 8, 10?

How many integers between 197 and 303 are divisible by 4 or 10?

A patient must take his medication every 7 hours starting at 7:00 AM Sunday. On what day will the patient first receive his medication at 8:00 AM?

Of the 300 grocery shoppers surveyed, 96 did not have a regular day of the week on which they shop. What percentage of the shoppers did not have a regular day of shopping?

A water container has 100 ml of water in it and is 20% full. How many ml of water can this container hold if it’s full?

How many containers each occupy an area of 2 1/8 square meters can be stored in a 952 square meter warehouse?

A starting salary of a secretary of ABC Company is 15,000 a month. Next year, the starting salary will be raised to 18,000. What is the rate of increase in the starting salary?

The cost of a square meter commercial lot in a certain municipality five years ago was 12,500. There was a 420% increase in the price in the last five years. What is the current price per square meter of the lot today?

Last month a store manager decided to decrease the prices of all items by 10%. This month, he increased the prices by 10%. What would be the price for a pair of pants that cost 750 before prices were decreased last month?

When the original price of an item is increased by a certain rate, the increased price is 3,100. When the original price is decreased by the same rate, the decreased price is 1,900. What is the original price of this item?