Variations - practice for 12 year olds - last page
Number of problems found: 30
- Dining 5004
The dining room offers three types of soups and four types of main courses. How many ways can we choose soup and the main course? - Alarm clock
The old watchmaker has a unique digital alarm in its collection that rings whenever the sum of the alarm's digits equals 21. Find out when the alarm clock will ring. What is their number? List all options. - Girlfriends 4107
Four girlfriends want to take a photo together. How many different ways can they stand side by side? - Options 3572
We roll three dice. Write down all the feast options.
- Attempts 3460
How many attempts do I need to guess the 3-digit PIN to be sure I can guess it? - Keyboards keys
Michael had small keys on the shelf, which you can see in the picture. Their tones were marked on the white keys. Little Clara found the keys. As she took them off the shelf, they fell out of her hand, and all the white keys spilled out. So that the broth - Olympics
How many ways can six athletes be placed on the podium at the Olympics? Depend on the color of the metal. - Seven-segmet
Lenka is amused that he punched a calculator (seven-segment display) number and used only digits 2 to 9. Some numbers have the property that She again gave their image in the axial or central symmetry some number. Determine the maximum number of three-dig - Coin and die
Flip a coin and then roll a six-sided die. How many possible combinations are there?
We apologize, but in this category are not a lot of examples.
Do you have homework that you need help solving? Ask a question, and we will try to solve it.
Do you have homework that you need help solving? Ask a question, and we will try to solve it.