What is the least number of coins required to have an exact change for all possible items that cost from one cent up to and including one dollar in one-cent increments?
From 0 - 99 cents we need 10 coins ( 1 cent - 4 coins, 5 cents - 1 coin, 10 cents - 4 coins, 50 cents - 1 coin) To make 0 - 100 cents ($1) we need 11 coins ( 1 cent - 4 coins, 5 cents - 1 coin, 10 cents - 4 coins, 50 cents - 2coins)
A cuboidal block of 8 cm x 12 cm x 20 cm is cut into an exact number of equal cubes. What will be the least possible number of equal cubes?
One hundred business people gather at a meeting. 85 of them carry a cellular phone, 80 of them have a beeper, 75 of them speak at least two languages and 70 of them wear a suit. Therefore, a certain number of them have all of the above: a cell phone AND a beeper AND speak at least two languages AND wear a suit. Out of these 100 businesspeople, what is the least possible number who have all of the above?
A shopper buys 100 items for $100.00. The items include at least one (Toilet Paper), one (Loaf of Bread), and one (Hand Sanitizer) but no other kind. If a Toilet Paper costs $10.00, a Loaf of Bread costs $3.00, and a Hand Sanitizer costs $0.50, How many of each did he buy?
