[Question]: Alvin is 30 years old and Simon is 5 years away from being 1/2 the age of Alvin. How old is Simon?
[Answer]: 1 / 2 the age of Alvin who is 30 is 30 / 2 = 15. Simon is 5 years away from being half the age of Alvin so Simon is 15 - 5 = 10 years old.
So the answer is 10.

[Question]: Yvonne brings a box of chocolates to school. Half have nuts and half do not. The students eat 80% of the ones with nuts and eat half of the ones without nuts. If there are 28 chocolates left, how many chocolates were in the box?
[Answer]: The ones with nuts that they ate was 40% of the box because 80% x .5 = 40%. The ones without nuts that they ate equaled 25% of the box because 50% x .5 = 25%. They ate 65% of the box because 40 + 25 = 65. They left 35% of the box because 100 - 65 = 35. The box had 80 chocolates because 28 / .35 = 80.
So the answer is 80.

[Question]: Arwen and Elrond picked some flowers. Arwen was able to get 20 tulips and Elrond was able to get twice as many tulips as Arwen did. How many tulips were they able to get in total?
[Answer]:
Elrond was able to get 20 x 2 = 40 tulips. Therefore, the total number of tulips they were able to get is 40 + 20 = 60.
So the answer is 60.