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?
Gọi số cần tìm là 8abcde .
8 + a + b + c + d + e = số chia hết cho 9 .
Vì 8abcde có giá trị nhỏ nhất nên a = 0 ; b = 1 ; c = 2 ; d = 3
Vậy bây giờ có :
8 + 0 + 1 + 2 + 3 e = 14 + e = số chia hết cho 9
=> e = 4
Số cần tìm là 801234
gọi số phải tìm là 8abcde
Ta có : 8+a+b+c+d+e phải là số chia hết cho 9
Vì là số bé nhất nên a = 0 ;b =1 ;c = 2 và d = 3
Tổng các chữ số lúc này là : 8+0+1+2+3=14
Ta có : 14+e là số chia hết cho 9
Suy ra e = 4 vì 14+4 = 18 mà 18 chia hết cho 9
Vậy số phải tìm là 801234
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:
Câu 9 : 52 kg
Câu 10 : 801234
đúng 100% nhớ tk 3 nhé
9.Young male average weight is 47 kg + (47-39) = 55 kg
10. The minimum value is 800 001
The average mass of a group of children is 47kg. If 5/13 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
The sum of 2018 and a 3-digit number is a square number. Find the smallest possible value of the 3- digit numbers
The sum of 2018 and a 3-digit number is a square number. Find the smallest possible value of the 3- digit numbers
Trả lời
Tổng số 2018 và một số gồm 3 chữ số là một số hình vuông. Tìm giá trị nhỏ nhất có thể có của các số có 3 chữ số
Hok tốt
:
In a 4-digit number, the ones digit is the possible largest number, the hundreds digit is the smallest odd number and the tens digit is 1 more than the hundreds digit. The thousands digit is the sum of the hundreds and the tens digit. Find the number.
Answer: The number is
in a 4-digit number, the ones digit is the possible largest number, the hundreds digit is the smallest odd number and the tens digit is 1 more than the hundreds digit. The thousands digit is the sum of the hundreds and the tens digit. Find the number
In a 4-digit number, the ones digit is the possible biggest number, the hundreds digit is the smallest odd number and the tens digit is 1 more than the hundreds digit. The thousands digit is the sum of the hundreds and tens digit . Find the number. nhanh lên nhé
The ones digit: 9
The tens digit: 2
The hundreds digit: 1
The thousands digit: 3
Answer: 3129
Mary writes down a three-digit number. William copies her number twice in a row to
form a six-digit number. When William’s number is divided by the square of Mary’s
number, the answer is an integer. What is the value of this integer?
Question 9:
I am a two –digit number. I have digit “0” in the ones place. When I am divided by 6, the quotient is 8 and has remainder. Who am I?
Answer:
Question 10:
The difference of a 3-digit number and the smallest 3-digit number is just before of the greatest even 2-digit number. The 3-digit number is
If F is a 4- digit number, divisible by 9,10 and 13 then the smallest value of F is.........