Level 2
Nick cut a pie into 8 equal pieces. He ate 2 of them and gave some of them to his friends. He then had 14 of his pie left. What fraction of the original pie was given to his friends?
Level 3 23 of Sean's savings comprised of 20-cent coins and 50-cent coins. Sean used some 20-cent coins to purchase a toy. The number of 50-cent coins left was 50% more than the number of 20-cent coins left. Given that Sean had 100 more 50-cent coins than 20-cent coins left in the end, find the amount of money Sean spent on the toy.
Level 3 35 of a rectangular tank with a base area of 800 cm2 is filled with water. Another 2.4 ℓ of water are needed to fill this tank to its brim. What is the height of the water in the tank?
Level 3
Jim can paint 1 house in 6 days. With Ron's help, they can paint the same house in 3 days. How many days would Ron take to paint the house alone?