Q: Evie is collecting seashells while at the beach. Each day she collects her favorite 10 shells. At the end of 6 days, she gives 2 shells to her brother. How many shells does she have left?
A: Multiply the number of shells collected each day by 6, to get the total number of seashells Evie has collected: 10 x 6 = 60 seashells. Subtract the 2 shells she gave her brother, to get the number of shells she has left: 60 - 2 = 58 seashells. The answer is 58.
Question: Selena and Josh were running in a race. Together they ran 36 miles. Josh ran half of the distance that Selena ran. How many miles did Selena run?
Answer: Let J = Josh's distance. 2J = Selena's distance. J + 2J = 36. 3J = 36 miles. J = 12. 2J = 24 miles. Selena ran 24 miles. The answer is 24.
[Question]Carla is making smoothies. If she uses 500 ml of watermelon puree and 100 ml of cream, how many 150 ml servings can she make?
[Answer]First find the total volume of the smoothie mix: 500 ml + 100 ml = 600 ml. Then divide the total volume by the volume per serving to find the number of servings: 600 ml / 150 ml / serving = 4 servings. The answer is 4.
Q: Christian is twice as old as Brian. In eight more years, Brian will be 40 years old. How old will Christian be in eight years?
A: If in eight years Brian will be 40 years old, he is currently 40 - 8 = 32 years old. Since Christian is twice as old as Brian, he is 2 * 32 = 64 years old. In 8 years, Christian will be 64 + 8 = 72 years old. The answer is 72.
Question: In a compound, the number of cats is 20% less than the number of dogs. There are also twice as many frogs as the number of dogs in the compound. Calculate the total number of animals present in the compound if there are 160 frogs.
Answer: There are twice as many frogs as dogs in the compound, meaning there are 160 / 2 = 80 dogs. The total number of frogs and dogs in the compound is 80 + 160 = 240. The number of cats is less than 20% of the number of dogs, which means there are 20 / 100 * 80 = 16 dogs more than the number of cats. Therefore, the number of cats is 80 - 16 = 64 cats. The total number of animals in the compound is 64 cats + 240 dogs and frogs = 304 animals. The answer is 304.
Q: It’s February 2021. Mark was born in January 1976. Graham is 3 years younger than Mark, and Graham’s sister, Janice, is 1/2 the age of Graham. How old is Janice?
A:
It’s 2021 and Mark was born in 1976 so Mark is 2021 - 1976 = 45 years old. Graham is 3 years younger than Mark who is 45 so Graham is 45 - 3 = 42 years old. Janice is 1 / 2 the age of Graham who is 42 so Janice is 42 / 2 = 21 years old. The answer is 21.