Let M = 91011121314..... (M is written by consecutive natural numbers)
If M has 175 digits then when M divided by 5, the remaider is ..........
Let M = 91011121314... ( M is written by consecutive natural numbers)
if M has 175 digits then when M divided by 5 , the remaider is ......
a. 2 b. 1 c. 0 d.3
nếu m có 175 con số sau đó khi m chia cho 5 còn lại là
nếu m có 175 con số khi m chia cho 5 thì còn lại 0
If m, n are consecutive odd numbers and is divisible by 3 and 5 then m =
cho hỏi:If m, n are consecutive odd numbers and is divisible by 3 and 5 then m = .bằng ao nhiêu vậy
If m, n are consecutive odd numbers and is divisible by 3 and 5 then m =
Exer 1: There is a division with the quotient is 6 and the remainder is 3. The sum of dividend, divisor and remainder are 195. Find the dividend are divisor.
Exer 2: Prove that: Amoney three consecutive natural numbers, there is one only one the number which divisibles by 3.
Exer 3: Given natural number, n = \(\overline{1ab1}\). Let m be the natural number which is written the opposite respectively of n. Prove that the different of n and m divisibles by 90.
Exer 1:
Trả lời:
The sum of dividend and divisor are:
195 - 3 = 192
Because the quotient is 6.
The divisor is:
(192-3) : (6+1) = 27
The dividend is:
192 - 27 = 165
Exer 2:
Trả lời:
Let three unknow numbers be: n, n + 1, n + 2.
Because n has three forms: 3k, 3k + 1, 3k + 2.
+) If n
Xin lỗi, mình vẫn chưa viết xong, rồi mình viết tiếp đây:
+) If n = 3k then there is only n divisibles by 3.
+) If n = 3k + 1 then there is only n + 2 divisibles by 3.
+) If n = 3k + 2 then there is only n + 1 divisibles by 3.
Thus, amoney three consecutive natural numbers, there is one only one the number which divisibles by 3.
Exer 3:
Trả lời:
When we written the opposite respectively of n, we obtain \(\overline{1ba1}\).
We have:
\(\overline{1ab1}\) + \(\overline{1ba1}\) = (1000 + 100a + 10b + 1) - (1000 + 100b + 10a + 1)
= 90a - 90b
= 90(a - b)\(⋮\) 90
Thus, the difference of n and m which divisibles by 90.
If the sum of four consecutive numbers is 54 then their product has ... digits
Nếu tổng của bốn số liên tiếp là 54 sau đó sản phẩm của họ có ... chữ số . Mình dịch ra câu hỏi đó , đúng chưa?
If the sum of four consecutive numbers is 54 then their product has ............ digits
If the sum of four consecutive numbers is 54 then their product has 32 760 digits.
Is it Eight (8) or 12 + 13 + 14 + 15
or 1+2+1+3+1+4+1+5=17
their product is:
12x13x14x15=32760
their product has 5 dights.
If the sum of four consecutive numbers is then their product has ...... digits.
I don't understand you write , you can write in Vietnamese ???
If the sum of four consecutive numbers is then their product has ..... digits?
If the sum of four consecutive numbers is 54 then their product has ..... digits ?