Answer this question:A pen and pencil have a total cost of $6. If the pen costs twice as much as the pencil, what is the cost of the pen?
Let x be the cost of the pencil. If the pen costs 2 times the cost of the pencil, then it costs 2x. Adding the cost of the pen and pencil we get 2x + x = 3x. Since the total cost is $6 then 3x = $6 therefore x = $6 / 3 = $2. One pen is equal to 2 * x which is 2 * $2 = $4.
The answer is 4.

Answer this question:Mr. Callen bought 10 paintings at $40 each and 8 wooden toys at $20 each from the crafts store to resell at a profit. However, when he sold the items, the selling price of a painting was 10% less and the selling price of a hat 15% less. Calculate the total loss Mr. Callen made from the sale of the items.
If he sold a painting at a 10% loss, then he made a 10 / 100 * $40 = $4 loss on each painting. since he bought 10 paintings, the total loss he made from selling the paintings is 10 * $4 = $40. He also made a loss of 15 / 100 * 20 = $3 loss from selling each wooden toy. Since he bought 8 wooden toys, the total loss he made was 3 * 8 = $24. In total, Mr. Callen made a loss of $40 + $24 = $64 from the sales of the items.
The answer is 64.

Answer this question:The gauge on a water tank shows that the tank is 1/3 full of water. To fill the tank, 16 gallons of water are added. How many gallons of water does the tank hold when full?
Given that the tank is 1 / 3 full of water, and that it requires 16 gallons to fill. 1 full tank - 1 / 3 tank = 2 / 3 of the tank is empty, which is equal to 16 gallons. If 2 / 3 of the tank equals 16 gallons, this means 1 / 3 of the tank is equal to 16 / 2 gallons = 8 gallons. The total capacity of the tank or how much the tanks holds = 16 + 8 = 24 gallons.
The answer is 24.

Answer this question:Trent cries 2 tears for every three onions he chops. He needs to chop 4 onions per pot of soup. If he's making 6 pots of soup, how many tears does he cry?
First find how many onions total Trent needs to chop: 4 onions / pot * 6 pots = 24 onions. Then divide that number by three onions per 2 tears to find how many sets of two tears Trent cries: 24 onions / 3 onions = 8. Then multiply that number by the number of tears per set to find the total number of tears: 8 * 2 tears = 16 tears.
The answer is 16.