Reason - practice problems - page 7 of 99
Number of problems found: 1961
- Probability 59073
A group of n people, including Jano and Fero, randomly line up. What probability will there be exactly r people (r - Consecutive 29761
Determine three consecutive natural numbers, the sum of which is 66. - Significant 19983
We roll two dice, red and green. What probability will a more significant number fall on the red dice than on the green? - Determined 16233
How many lines are determined by 5 points if three lie in one line? - Numbers 7755
How many digits 7 are in numbers from 1 to 777? - Divisors 6619
Which natural number less than 100 has the largest number of divisors? - Difference 5222
Determine the difference and the first term of AP if a3 + a4 = 48, a7 = 80. - Cooking 3400
Cooking one egg takes 4 minutes. How many minutes does it take to cook four eggs? - Triangle 3187
In a general triangle, the aspect ratio a: b = 2: 3. What is the ratio of heights va: vb? - Unknown 2881
Find an unknown number: (9 + y) x 6 = 12 x 7 y =? - Single-digit 2805
Which two single-digit numbers have the sum and product of the same number? - Tables and chairs
The cost of 4 tables and 3 chairs is $225, and 3 tables and 4 chairs cost $195. Find the cost of 2 chairs and 1 table. - Five number code
I have a five-digit code on the bag that I forgot. I remember that it was a symmetric number and the sum of its digits was 22. Write all the numbers that can be a code. - Divisible by nine
How many three-digit natural numbers in total are divisible without a remainder by the number 9? - Gold, silver, bronze
How many ways can we divide gold, silver, and bronze medals if six people compete? - Bikes
Pepa asked Honza how many bikes he had. He replied that he had three-quarters of their total number and another three-quarter of one bike. So how many cycles does Honza have? - AM of three numbers
The number 2010 can be written as the sum of 3 consecutive natural numbers. Determine the arithmetic mean of these numbers. - Circus
At the circus performance were 150 people. Men were ten less than women and children 50 more than adults. How many children were in the circus? - Letters
ABC + DEF = GHIJ replace letters with numbers so that the sum is correct (different letters = different numbers) - Diofant equation
250x + 120y = 5640
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