Challenge #4

Johnny's Donust Shop is running a "buy one get one 50% off" sale today. During the sale, Laine bought 4 glazed donust for only $3.78. What is the regular price for one glazed donut at Johnny's Donut Shop?

A group of 20 friends went to an amusement park to ride bumper cars. They rented 2 bumper cars for 60 minutes. Each bumper car can have at most 2 riders at one time. If they share the ride time equally, at most how many minutes can each friend ride on a bumper car?

Four students are going to volunteer at a food pantry tomorrow. Each student will be assigned to either the morning shift of the afternoon shift, but not both. Each shift must be covered by at least one of the four students. How many different ways can the four students be assigned?

Ming has a rectangular garden. The length of the garden is twice the width. If Ming increases the length of his garden by 6 feet and decreases its width by 3 feet, how much smaller is the area of the new rectangular garden than the area of the original garden, in square feet?

Jasmine has $4.90 in quarters, dimes, nickels and pennies. She has 2 more dimes than quarters. She has 3 more nickes than quarters. She has 4 more pennies than quarters. How many quareters does Jasmine have? Note: A quarter is worth $0.25, a dime is worth $0.10, a nickel is worth $0.05, and a penny is worth $0.01.

The sum of four distinct whole numbers is 110. Each of the four numbers contains at least one digit 6. What is the greatest of the four numbers?

At the beginning of a baseball game, there were 3 Eagles for every 4 Tigers fans. After 8 Eagles fans left the game and 16 more Tigers fans came to the game, there was 1 Eagles fan for every 2 Tigers fans at the game. How many Eagles fans were there at the beginning of the game?