From 4 letters ab18 one can make all 18 numbers with 4 digits. (In a number, each digit is written only once.) The sum of all 18 possible numbers is 90216. Find a and b.
Những câu hỏi liên quan
A 4-digits number is divisble by all of the numbers from 1 to 10 ưithout any remainder .
find the smallest possible value of the 4 - digit number
choose any three digits from 1 to 9 to form a 3 - digit number and each digits is chosen only once. how many of these have the sum of all digit equal to 13
Dịch đề: Chọn bất kỳ ba chữ số từ 1 đến 9 để tạo thành một số gồm 3 chữ số và mỗi chữ số chỉ được chọn một lần. Bao nhiêu trong số này có tổng của tất cả các chữ số bằng 13
Đúng 0
Bình luận (0)
Câu 1 :Each of cars can take 8 people. How many cars needed to take 124 people?
Câu 2 : How many integer numbers between 200 and 300 are there for which the hundreds digit equals the sum of the other two digits?
Câu 3 : The average of five numbers is 20. The average of the five number is 18 when one of the numbers is chaned to 4. What is the orginal value of the changed number?
Câu 4 :A book has 250 pages starting at number 1. How many digits are there in the page numbers of the book?
Câu 5...
Đọc tiếp
Câu 1 :Each of cars can take 8 people. How many cars needed to take 124 people?
Câu 2 : How many integer numbers between 200 and 300 are there for which the hundreds digit equals the sum of the other two digits?
Câu 3 : The average of five numbers is 20. The average of the five number is 18 when one of the numbers is chaned to 4. What is the orginal value of the changed number?
Câu 4 :A book has 250 pages starting at number 1. How many digits are there in the page numbers of the book?
Câu 5 : Find A, if A is 3 less than the average of 48; 55; 29 and A. The value of A is…
Câu 6 : The sum of denominator and numerator of a fraction is 121 and the fraction is equal to 4/7. Find the denominator of the fraction?
Câu 7 : The sum of two numbers is equal to 77. If the first number is multiplied by 8 and the second by 6, the two product are equal. The larger of these numbers is…
Câu 8 : Which is the greatest 2 - digit number divisible by 2, 3 and 4?
Câu 9 : Calculate: (1 + 2/5) x 6/7.
Câu 10 : Give the number sequence: 1, 4, 7, 10, 13, … Find the 15th term of the number sequence.
câu 1:16 ; câu 2 : ai mà biết được
A 4 - digits numbers divisible by all of the numbers from 1 to 10 without any remainder. Find the smallest possible value of the 4-digits number
A 4 - digits numbers divisible by all of the numbers from 1 to 10 without any remainder. Find the smallest possible value of the 4-digits number
Trả lời hộ mik ai làm nhanh mik k cho
Thank you
1) Fill the mussing number. A cube has.....vertices
2) Fill the missing number. We're in the....st century
3) Ther are only two 2-digit numbers that are a multiple of 7 and the sum of thetr two digits is 10. Find the sum of these two 2-digit numbers: 70,119,140,21
4) The fourth power of 3 is...
5) Twice the square of 3....
6) The number of ethnic group in Vietnam?
7) The perimeter of 4cm square egde in cm?
1) Fill the mussing number. A cube has \(8\) veres
2) Fill the missing number. We're in the \(21\) st century
3) Ther are only two 2-digit numbers that are a multiple of 7 and the sum of thetr two digits is 10. Find the sum of these two 2-digit numbers: 70,119,140,21 \(70\)
4) The fourth power of 3 is \(64\)
5) Twice the square of 3 \(18\)
6) The number of ethnic group in Vietnam? \(54\)
7) The perimeter of 4cm square egde in cm? \(1\)
Đúng 0
Bình luận (0)
Mình cũng đar giải ra như các bạn rồi, chỉ có câu 3) đáp án không phải là 70, mình đã trả lời trên thi toán tiếng Anh rồi. Nhưng dù sao cũng cảm ơn các bạn nhé.
Đúng 0
Bình luận (0)
Xem thêm câu trả lời
A 4 - digits numbers divisible by all of the numbers from 1 to 10 without any remainder. Find the smallest possible value of the 4-digits number
Using each of the digits 3, 4, 5 and 6 exactly once to form two 2 - digit numbers. What is the difference between the largest possible product and the smallest possible product of two such numbers?
sai rồi, tớ cũng nghĩ thế nhưng ghi thi người ta bảo sai
Đúng 0
Bình luận (0)
giải
họ hỏi là hiệu giữa số bé nhất và số nhỏ nhất lập được:
số lớn nhất lập được : 65
số bé nhất lập được: 34
hiệu : 65 - 34 = 32
nhé !
Đúng 0
Bình luận (0)
Xem thêm câu trả lời
Find all natural numbers having two digit , knowing that twice the units digit 1 more than the ten digit , and if we write that two digits in reverse order, we get a new number which is 27 less than the old one
Tell the numbers to find are \(\overline{ab}\)
\(\Rightarrow\left\{{}\begin{matrix}2b-a=1\\\overline{ab}-\overline{ba}=27\end{matrix}\right.\)
=> 10a + b - 10b - a = 27
=> 9a - 9b = 27
=> a-b = 3
=> a = b + 3
=> 2b - 1 = b+3
=> 2b - b = 3 + 1
=> b = 4
=> a = \(2\cdot4-1=7\)
So he number to find is 74
Đúng 0
Bình luận (0)