[Question]: Kevin has a tree growing in his garden that is currently 180 inches tall. That is 50% taller than it was when he planted it there. How tall was the tree, in feet, then?
[Answer]: Since it is 50% taller, then 180 inches is 100% + 50% = 150% of its height then. So each 1% is equal to 180 / 150 = 1.2 inches. So, its height then was 1.2 x 100% = 120 inches. Since 1 foot is equal to 12 inches, then 120 inches is equal to 120 / 12 = 10 feet.
So the answer is 10.

[Question]: Jamie and Oliver are planning to go on a vacation. A plane ticket costs $24 for each person and a hotel stay costs $12 for each person per day. How much money will they spend on the vacation if they stay for 3 days?
[Answer]: Jamie and Oliver will spend $24 x 2 = $48 for the plane ticket. They will spend $12 x 2 = $24 for staying in the hotel per day. So, the total amount they will spend on the hotel for a 3 - day stay is $24 x 3 = $72. Therefore, the total amount they will spend on their vacation is $72 + $48 = $120.
So the answer is 120.

[Question]: 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?
[Answer]:
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.
So the answer is 72.