Các câu hỏi tương tự
When a particular six-digit number is multiplied by 2, 3, 4, 5 and 6 respectively, each of the
products is still a six-digit number with the same digits as the original number but in a different
order. Find the original number.
How many 5-digit numbers contain all the digits 1, 2, 3, 4 and 5 and have the property that the difference between each pair of adjacent digits is at least 2?
Each digit of a positive integer is 1 or 2 or 3 . Given that each of the digit 1;2 and 3 occurs at least twice
What is the smallest such integer that is not divisible by 2 or 3?
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The average of six numbers is 4. If a seventh number is added, the average of seven numbers will be 5. Then the seventh number is .
How many 5- digit numbers are greater than 40000 that ues the digits 1,2,3,4 and 5, and the digits cannot be repeated
Jane draws a circle and a triangle on each page of her booklet, and near each drawing she writes the number of common points of the circle and the triangle.
How many different numbers can she write
We use 8 digits 0, 1, 2, 3, 4, 5, 6, 7 to form all 5-digit natural numbers consisting of distinct digits. Find the sum of all numbers that can be formed
Trả lời những câu hỏi này bằng Tiếng Anh :
1. At night they come without being fetched. And by day they are lost without being stolen. Who are they?
2. Who succeeded the first Prime Minister of the UK?
3. When can you have something and nothing at the same time in your pocket?
4. Where can you always find money?
5. Why do fish live in water?
6. What can’t be used unless broken?
How many 4-digit whole numbers, whose sum of all its digits is 35, are even?
Answer: number(s).(dịch+cách làm)