Eighty percent of adults drink coffee and 70

Eighty percent of adults drink coffee and 70% drink tea. What is the smallest possible percent of adults who drink both coffee and tea?

Answer: 50 (percent)

A pyramid with volume 40 cubic inches has a rectangular base. If the length of the base is doubled, the width tripled and the height increased by 50%, what is the volume of the new pyramid, in cubic inches?

Answer: 360 (cubic inches)

Answer: 3

Cory has 3 apples, 2 oranges and 2 bananas. If Cory eats one piece of his fruit per day for a week and the pieces of fruit within each category are indistinguishable, in how many orders can Cory eat the fruit? One such order is AAAOOBB.

Answer: 210 (orders)

Answer:

Answer: 108

A set of five integers has unique mode 7, median 9, and arithmetic mean 11. What is the greatest possible value in the set?

Answer: 22

Answer: 9 (ways)

Answer: 4 (values)

Answer: 4 (pieces)

A family of five has Momma, Poppa and three children. Each child generates 2 loads of laundry per week while each parent generates 1. 5 loads per week. How many loads of laundry are generated by this family in 52 weeks?

Answer: 468 (loads)

Answer:

Answer:

Answer: 11 (integers)

The three-digit positive integer N has a ones digit of 3. What is the probability that N is divisible by 3? Express your answer as a common fraction.

Answer:

Pizzas are sized by diameter. What percent increase in area results if Chantel’s pizza increases from a 10 -inch pizza to a 12 -inch pizza?

Answer: 44 (percent)

Answer: 5 (trios)

While standing in line to buy concert tickets, Kit moved 60 feet closer to the ticket window over a period of 30 minutes. At this rate, how many minutes will it take her to move the remaining 70 yards to the ticket window?

Answer: 105 (minutes)

Answer:

Answer: 12 (crates)

All positive integers whose digits add up to 11 are listed in increasing order: 29, 38, 47, …. What is the eleventh number in that list?

Answer: 137

How many subsets of {1, 2, 3, 4, 5} with two or more elements have the property that the sum of their elements is a positive, even number?

Answer: 13 (subsets)