In a school garden, there are flowers in different colors. In total there are 96 flowers of four colors: green, red, blue, and yellow. There are 9 green flowers and three times more red flowers. Blue flowers make up to 50% of the total flower count. How many yellow flowers are there?
Let's think: There are 3 * 9 = 27 red flowers. 50 / 100 * 96 = 48 flowers are blue. Knowing that, there are 96 - 48 - 27 - 9 = 12 yellow flowers in a school's garden.. The answer is: 12.

Toby is dining out with his friend. They each order a cheeseburger for $3.65. He gets a milkshake for $2 and his friend gets a coke for $1. They split a large fries that cost $4. His friend also gets three cookies that cost $.5 each. The tax is $.2. They agree to split the bill. If Toby arrived with $15, how much change is he bringing home?
Let's think: The cookies cost 3 x .5 = 1.5. The hamburgers cost $7.3 because 2 x 3.65 = 7.3. The total cost is $16 because 7.3 + 2 + 1 + 4 + 1.5 + .2 = 16. The cost is $8 per person because 16 / 2 = 8. Toby has $7 in change because 15 - 8 = 7.. The answer is: 7.

As a child, Bobby was able to jump rope 30 times per minute. Now that he is an adult, he can jump 1 jump per second. How many more jumps than when he was a child is Bobby able to jump now that he is an adult?
Let's think: Now that he is an adult, Bobby can jump 60 * 1 = 60 jumps per minute. Bobby can jump 60 - 30 = 30 more jumps than when he was a child.. The answer is: 30.

The lunchroom is full of students: 40% are girls and the remainder are boys. There are 2 monitors for every 15 students. There are 8 monitors. Every boy drinks, on average, 1 carton of milk, and every girl drinks, on average, 2 cartons of milk. How many total cartons of milk are consumed by the students in the lunchroom?
Let's think:
There is 1 monitor for every fifteen students because 30 / 2 = 15. There are 120 students because 8 x 15 = 120. 60% of the lunchroom is boys because 100 - 40 = 60. There are 72 boys because 120 x .6 = 72. There are 48 girls because 120 x .4 = 48. The boys drink 72 cartons of milk because 72 x 1 = 72. The girls drink 96 cartons of milk because 48 x 2 = 96. They drink 168 cartons of milk because 72 + 96 = 168.. The answer is: 168.