Sunnyvale School was having a picnic. They wanted to make fruit punch. They had 4.5 liters of orange punch. They had twice as much cherry punch as orange punch and 1.5 liters less of apple juice than cherry punch. When they combined all of the fruit juices together, how many liters of fruit punch did they have? Give the rationale and then the answer.
Let's think step by step. Orange = 4.5 L. Cherry = 2 * 4.5 = 9 L. Apple = 9 - 1.5 = 7.5 L. Total punch = 4.5 + 9 + 7.5 = 21 L. They had 21 liters of fruit punch for the picnic.. The answer is: 21.

Sara’s house is 100 square feet larger than 2 times Nada's house. If Sara's house is 1000 square feet, how many square feet is Nada's house? Give the rationale and then the answer.
Let's think step by step. Let the number of square feet in Nada's house be y. 2y + 100 = 1000. 2y = 900. Meaning, y = 450 square feet.. The answer is: 450.

Omi is twice as old as Kimiko. Arlette is 3/4 times as old as Kimiko. If Kimiko is 28 years old, calculate the average age of the three? Give the rationale and then the answer.
Let's think step by step. If Kimiko is 28, Omi is 2 * 28 years = 56 years old. Arlette is 3 / 4 * 28 years = 21 years old. If you add up their ages, it sums to 21 years + 56 years + 28 years = 105 years. The average age for the three is 105 years / 3 people = 35 years / person.. The answer is: 35.