Reason - practice for 14 year olds - page 4 of 40
Number of problems found: 784
- Three-digit 9531
How many three-digit numbers do not change if we replace the digit in the hundreds with the digit in the units? - Possibilities 8237
How many different possibilities of settling friends A B C D E F on six seats if A wants to sit next to C - Summands 6879
Divide the number 111 into three summands so that each is two larger than the previous one. - Weighs 4877
A + B weighs 75 kg, B + C weighs 83 kg, C + D weighs 92 kg. How much does A + D weigh? - Circles
Three circles of radius 30 cm, 28 cm, and 37 cm are mutually tangent. What is the triangle perimeter whose vertices are the circles' centers? - Even five-digit
How many can even five-digit natural numbers with different digits be created from the digits 0 - 6? - Squares
From the square with the integer side, cut out the square with the integer side so that the residual area is 100. What is the longest possible side of the larger square? - Ten persons
Ten persons, each person, make a hand to each person. How many hands were given? - Pairs of socks
Ferdinand has twelve pairs of socks, and one sock is leaky. What is the probability of putting on a leaky sock? - Bookshelf and books
How many ways can we place seven books on a bookshelf? - A jackpot
How many times must I play this jackpot to win? A jackpot of seven games having (1 X 2), i.e., home win or away win. - Midnight
How many hours are if the time elapsed since 8:00 is 2/5 of the time that will pass until midnight? - Workers
A Group of workers washed half of the windows of the building in two hours. How long will it take half the workers to wash all the windows of the building? - The confectionery
The confectionery sold five kinds of ice cream. How many ways can I buy three kinds if the order of ice cream does not matter? - Mushrooms
For five days, we collected 410 mushrooms. Interestingly, we collected ten mushrooms more every day than the preceding day. How many mushrooms have we collected during the 4th day? - The dice
What is the probability of events if we throw a dice rolled less than 1? - Sequence
In the arithmetic sequence, is a1=-1, d=4. Which member is equal to the number 203? - Party
At the party, everyone clinked with everyone. Together, they clink $strng times. How many people were at the party? - MATHEMATICS: 46893
Solving the problem, substituting letters with numbers in the word MATHEMATICS: MAT + EMA = TIK - Probability 8408
From the group of 18 players I am, the coach selects nine players. What is the probability that I will be among the players chosen?
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