What is the sum ò all multiples of 6 each of wich has exactly 10 positive divisora
Nineteen children, aged 1 to 19 respectively, are standing in a circle. Thế diference between the ages ò each pải ò adjacent children is recorded. What is the maximum value of the sum of these 19 positive interger
ảnh viết tiếng anh mà bật unikey là tiếng việt nên nó có dấu kìa
ảnh lấy câu hỏi trong violympic toán tiếng anh đúng ko ????
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Câu hỏi tiếng ANH :
If the sum of all the digits in each of two consecutive positive integers are both exactlt multiple of 5. Then what is the least sum of these two integers ?
A. 99 B. 999 C. 9999 D. 99999
Bản dịch này bn, còn giải thì bn tự tính nha!
"Nếu tổng của tất cả các chữ số trong mỗi hai số nguyên dương liên tiếp là cả hai chính xác nhiều của 5. Sau đó, tổng hợp ít nhất của hai số nguyên là gì?"
What is the difference between the sum of the first 100 positive even numbers and the sum of the first 100 positive odd numbers ?
The first 100 positive even numbers are 2; 4; 6;...; 200. Their sum is \(\dfrac{\left(200+2\right).100}{2}=10100\).
The first 100 positive odd numbers are 1; 3; 5;...; 199. Their sum is \(\dfrac{\left(199+1\right).100}{2}=10000\)
The difference between two sums is \(10100-10000=100\)
Question 1:
J is a factor and a multiple of 25. What is J?
Answer: J =
Question 2:
How many prime numbers are less than 10?
Answer: There are
numbers.
Question 3:
Which of following numbers is composite?
Answer:
.
Question 4:
P is a prime number and a factor of 8. What is P?
Answer: P =
Question 5:
Find the sum of all the factors of 15
Answer:
Question 6:
In the following figure, AN = 5cm and AB = 8cm. NB =
cm
Question 7:
A prime number between 42 and 46 is
Question 8:
Find the sum of all the factors of 19
Answer:
Question 9:
How many prime numbers have formed ?
Answer: There are
numbers
Question 10:
How many multiples of 3 less than 1000?
Answer:
What is the sum of the positive integers of 30?
Tổng của các số nguyên dương của 30 là bao nhiêu
Number 6 is written as sum of two positive integers in three different ways: $6=1+5=2+4=3+3.$ (order does NOT matter). That is, there are exactly three different pairs of positive integers that add to make six. How many pairs of positive integers that add to make 1000?
The teacher has 12 cards of number 1 to 12 and gives to 6 students
randomly.
Each student receives 2 cards, then tells students in the class the sum of 2
numbers on cards to examine whether or not the sum is a prime number.
Surprisingly, all of the 6 sums are prime numbers.
What is the sum of these 6 prime numbers from the 6 students?
giúp mình câu này với
the sum A of 191 consecutive positive integers is a perfect square . Find the largest of those 191 positive integers so that A has the smallest value
What is the largest 3-digit number that has all of its digits different and is equal to 37 times the sum of its digit ?