Một vài con số khác nhau được viết trên bảng. Đúng hai chúng chia hết cho 3 và chính xác 9 trong số đó là chia hết cho 13. Cho M là lớn nhất của những con số này. giá trị nhỏ nhất của M là gì?
several different numbers are written on the board . Exactly two them are divisible by 3 and exactly 9 of them are divisible by 13 . Let M be the greatest of these numbers . What is the smallest possible value of M ?
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exactly two them are divisible by 3 and exactly 9 them are divisible by 13 .let M be the greatest of these numbers .what is the smallest possible value of M
A 169 B 117 C 130 D 156
Toán TA mk cần người dịch hộ đầu bài thôi. Thanks!
Integers from 1 to 20 inclusive are written on the board. Any two numbers on the board are erased, and then the sum of the two erased numbers are written on the board. This process is repeated exactly 18 times. Now there are just two numbers left on the board, so that one is six times the other. Find the smaller number of the two
A 6 digit number begins with the digit 8.The number with divisible by 9 and all digits of the number are different.What is the possible smallest value of this number?
Câu 9:
The average mass of a group of children is 47kg. If of the number of children are girls and their average mass is 39kg. Find the average mass of the boys.
Answer: The average mass of the boys is kg
Câu 10:
A 6-digit number begins with the digit 8. The number is divisible by 9 and all digits of the number are different. What is the possible smallest value of this number?
Answer:
If we write all of the whole numbers from 10 through 99 and cross out any number in which the first or second digit is divisible by 2 (for example, 41 is crossed out as 4 is divisible by 2 and 36 is crossed out as 6 is divisible by 2), how many numbers are crossed out
If we write all of the whole numbers from 10 through 99 and cross out any number in which the first or second digit is divisible by 2 ( for example, 41 is crossed out as 4 is divisible by 2 and 36 is crossed out as 6 is divisible by 2), how many numbers are crossed out?
If we write all of the whole numbers from 10 through 99 and cross out any number in which the first or second digit is divisible by 2 (for example, 41 is crossed out as 4 is divisible by 2 and 36 is crossed out as 6 is divisible by 2), how many numbers are crossed out?
